Description: Clinochlore at Grace Mine occurs often in distorted foliae, up to several centimeters across. Although bent and severly distorted at times, it exhibits perfect cleavage.

References:

The Mineralogy of Pennsylvania 1966-1975

Robert C. Smith pg. 82-83, Table4 pg. 78

ⓘ Clinochlore var. Chromium-bearing Clinochlore

Formula: Mg₅(Al,Cr)₂Si₃O₁₀(OH)₈

Locality: Wheatfield Mine, Spring Township, Berks County, Pennsylvania, USA

ⓘ Clinochlore var. Pennine

Formula: Mg₅Al(AlSi₃O₁₀)(OH)₈

Locality: Grace Mine, Morgantown, Berks County, Pennsylvania, USA

ⓘ Clinochlore var. Ripidolite

Formula: (Mg,Fe,Al)₆(Si,Al)₄O₁₀(OH)₈

Locality: Jones Mine, Morgantown, Caernarvon Township, Berks County, Pennsylvania, USA

ⓘ Cobaltite

Formula: CoAsS

Locality: Dyer Quarry, Gibraltar, Birdsboro, Berks County, Pennsylvania, USA

ⓘ Copper

Formula: Cu

Locality: Jones Mine, Morgantown, Caernarvon Township, Berks County, Pennsylvania, USA

ⓘ Cuprite

Formula: Cu₂O

Locality: Jones Mine, Morgantown, Caernarvon Township, Berks County, Pennsylvania, USA

ⓘ Datolite

Formula: CaB(SiO₄)(OH)

Localities:

Dyer Quarry, Gibraltar, Birdsboro, Berks County, Pennsylvania, USA
Grace Mine, Morgantown, Berks County, Pennsylvania, USA
Fritz Island Mines, Cumru Township, Berks County, Pennsylvania, USA

References:

Rocks & Min.: 23:914-915.

ⓘ 'Deweylite'

Formula: Mg₄Si₃O₁₀ · 6H₂O ?

Localities:

Fritz Island Mines, Cumru Township, Berks County, Pennsylvania, USA
Wheatfield Mine, Spring Township, Berks County, Pennsylvania, USA
Ruth Mine, Spring Township, Berks County, Pennsylvania, USA

References:

Ref.: Gordon, Samuel G. (1922), Mineralogy of Pennsylvania: 153.

ⓘ Dolomite

Formula: CaMg(CO₃)₂

Localities:

Reading Springs, Berks County, Pennsylvania, USA
Sinking Spring, Berks County, Pennsylvania, USA
Grace Mine, Morgantown, Berks County, Pennsylvania, USA

ⓘ Epidote

Formula: (CaCa)(AlAlFe³⁺)O[Si₂O₇][SiO₄](OH)

Localities:

Grace Mine, Morgantown, Berks County, Pennsylvania, USA
Rittenhouse Gap Mine (Rittenhouse Gap Iron Mines), Rittenhouse Gap, Berks County, Pennsylvania, USA

References:

Mineral collecting in Pennsylvania, 1965 - Lapham & Geyer, pg. 130

ⓘ Erythrite

Formula: Co₃(AsO₄)₂ · 8H₂O

Localities:

Dyer Quarry, Gibraltar, Birdsboro, Berks County, Pennsylvania, USA
H&K Birdsboro Materials Quarry (Dyer Trap Rock Quarry; Hay Creek Trap Rock Quarry), Hay Creek, Birdsboro, Berks County, Pennsylvania, USA

References:

Rocks & Min.: 21:278.

Rocks & Min.: 21:142-143.

ⓘ 'Feldspar Group'

Locality: Rittenhouse Gap Mine (Rittenhouse Gap Iron Mines), Rittenhouse Gap, Berks County, Pennsylvania, USA

ⓘ Ferrimolybdite

Formula: Fe₂(MoO₄)₃ · nH₂O

Locality: Antietam Reservoir, Lower Alsace Township, Berks County, Pennsylvania, USA

ⓘ Ferro-hornblende

Formula: ◻Ca₂(Fe²⁺₄Al)(Si₇Al)O₂₂(OH)₂

Locality: Rittenhouse Gap Mine (Rittenhouse Gap Iron Mines), Rittenhouse Gap, Berks County, Pennsylvania, USA

ⓘ Fluorapatite

Formula: Ca₅(PO₄)₃F

Locality: Jones Mine, Morgantown, Caernarvon Township, Berks County, Pennsylvania, USA

ⓘ Fluorapophyllite-(K)

Formula: KCa₄(Si₈O₂₀)(F,OH) · 8H₂O

Locality: Dyer Quarry, Gibraltar, Birdsboro, Berks County, Pennsylvania, USA

ⓘ Fluorite

Formula: CaF₂

Localities:

Fritz Island Mines, Cumru Township, Berks County, Pennsylvania, USA
Oley Valley Quarry (Oley Stone Quarry; Eastern Industries Quarry), Oley Township, Berks County, Pennsylvania, USA
Wheatfield Mine, Spring Township, Berks County, Pennsylvania, USA

References:

Ref.: Gordon, Samuel G. (1922), Mineralogy of Pennsylvania: 153.

ⓘ Galena

Formula: PbS

Localities:

Grace Mine, Morgantown, Berks County, Pennsylvania, USA
Fritz Island Mines, Cumru Township, Berks County, Pennsylvania, USA
Martin Stone Quarry, Berks County, Pennsylvania, USA

References:

The Mineralogy of Pennsylvania 1966-1975

Robert C. Smith II, pg. 232, Table 27

ⓘ 'Garnet Group'

Formula: X₃Z₂(SiO₄)₃

Localities:

Steele's Mine, Berks County, Pennsylvania, USA
Grace Mine, Morgantown, Berks County, Pennsylvania, USA
H&K Birdsboro Materials Quarry (Dyer Trap Rock Quarry; Hay Creek Trap Rock Quarry), Hay Creek, Birdsboro, Berks County, Pennsylvania, USA

References:

Dana 6: 1067.

ⓘ 'Gismondine Subgroup'

Locality: Fritz Island Mines, Cumru Township, Berks County, Pennsylvania, USA

ⓘ Graphite

Formula: C

Localities:

Rittenhouse Gap Mine (Rittenhouse Gap Iron Mines), Rittenhouse Gap, Berks County, Pennsylvania, USA
Jones Mine, Morgantown, Caernarvon Township, Berks County, Pennsylvania, USA
Olafsen Iron Mine, Huffs Church, Hereford Township, Berks County, Pennsylvania, USA

References:

Rocks & Min.: 15: 222.

ⓘ Grossular

Formula: Ca₃Al₂(SiO₄)₃

Locality: Fritz Island Mines, Cumru Township, Berks County, Pennsylvania, USA

ⓘ Gypsum

Formula: CaSO₄ · 2H₂O

Localities:

Jones Mine, Morgantown, Caernarvon Township, Berks County, Pennsylvania, USA
Grace Mine, Morgantown, Berks County, Pennsylvania, USA

References:

Rocks & Min.: 17:340.

ⓘ Gypsum var. Selenite

Formula: CaSO₄ · 2H₂O

Locality: Grace Mine, Morgantown, Berks County, Pennsylvania, USA

ⓘ Hematite

Formula: Fe₂O₃

Localities:

Peters Red Ochre Mine, Reading, Berks County, Pennsylvania, USA
Grace Mine, Morgantown, Berks County, Pennsylvania, USA
Fritz Island Mines, Cumru Township, Berks County, Pennsylvania, USA
Gabel Mine, Boyertown, Berks County, Pennsylvania, USA
Interstate highway 176 roadcut, Morgantown, Berks County, Pennsylvania, USA ? (more information)

References:

Topo.&Geol.Sur.of Penna, Rpt#4:88

Geol. of Penna, Vol1:200.

ⓘ 'Heulandite Subgroup'

Formula: (Na/Ca/K)_5-6[Al_8-9 Si_27-28 O₇₂] · nH₂O

Localities:

References:

Rocks & Min.: 21:278.

Rocks & Min.: 21:142-143.

ⓘ 'Hornblende Root Name Group'

Formula: ◻Ca₂(Z²⁺₄Z³⁺)(AlSi₇O₂₂)(OH,F,Cl)₂

Locality: Olafsen Iron Mine, Huffs Church, Hereford Township, Berks County, Pennsylvania, USA

ⓘ Hydromagnesite

Formula: Mg₅(CO₃)₄(OH)₂ · 4H₂O

Locality: Ruth Mine, Spring Township, Berks County, Pennsylvania, USA

ⓘ Hydroxylapatite

Formula: Ca₅(PO₄)₃(OH)

Locality: Pennsylvania Uranium Mining Company Shaft, Shanesville, Earl Township, Berks County, Pennsylvania, USA

ⓘ Kaolinite

Formula: Al₂(Si₂O₅)(OH)₄

Locality: Jones Mine, Morgantown, Caernarvon Township, Berks County, Pennsylvania, USA

ⓘ Laumontite

Formula: CaAl₂Si₄O₁₂ · 4H₂O

Localities:

References:

Rocks & Min.: 21:278

23:914-915.

Rocks & Min.: 21:142-143.

ⓘ Laumontite var. Leonhardite

Formula: CaAl₂Si₄O₁₂ · 3H₂O

Locality: Grace Mine, Morgantown, Berks County, Pennsylvania, USA

ⓘ 'Limonite'

Localities: Reported from at least 11 localities in this region.

References:

Topo & Geol Sur of Penna, Rpt #4:40-41.

ⓘ Magnetite

Formula: Fe²⁺Fe³⁺₂O₄

Localities: Reported from at least 11 localities in this region.

References:

Econ Geol (1985) 80:418-443

Betts, John (n.d.) John Betts website listing.

ⓘ Malachite

Formula: Cu₂(CO₃)(OH)₂

Localities:

References:

Rocks & Minerals: 17: 340.

Palache, Charles, Berman, Harry, Frondel, Clifford (1951) The System of Mineralogy (7th ed.) Vol. 2 - Halides, Nitrates, Borates, Carbonates, Sulfates, Phosphates, Arsenates, Tungstates, Molybdates, Ect. John Wiley and Sons, New York.

ⓘ Marcasite

Formula: FeS₂

Locality: Oley Valley Quarry (Oley Stone Quarry; Eastern Industries Quarry), Oley Township, Berks County, Pennsylvania, USA

ⓘ Marialite

Formula: Na₄Al₃Si₉O₂₄Cl

Locality: Grace Mine, Morgantown, Berks County, Pennsylvania, USA

ⓘ Mesolite

Formula: Na₂Ca₂Si₉Al₆O₃₀ · 8H₂O

Locality: Fritz Island Mines, Cumru Township, Berks County, Pennsylvania, USA

ⓘ 'Mica Group'

Locality: Rittenhouse Gap Mine (Rittenhouse Gap Iron Mines), Rittenhouse Gap, Berks County, Pennsylvania, USA

ⓘ Microcline

Formula: K(AlSi₃O₈)

References:

USGS National Geochemical Database

Rocks File W202466

ⓘ Molybdenite

Formula: MoS₂

Localities:

Rittenhouse Gap Mine (Rittenhouse Gap Iron Mines), Rittenhouse Gap, Berks County, Pennsylvania, USA
Antietam Reservoir, Lower Alsace Township, Berks County, Pennsylvania, USA

References:

David S. Bernstein- January 2010

ⓘ Muscovite

Formula: KAl₂(AlSi₃O₁₀)(OH)₂

Locality: Grace Mine, Morgantown, Berks County, Pennsylvania, USA

ⓘ Natrolite

Formula: Na₂Al₂Si₃O₁₀ · 2H₂O

Localities:

Dyer Quarry, Gibraltar, Birdsboro, Berks County, Pennsylvania, USA
Grace Mine, Morgantown, Berks County, Pennsylvania, USA
H&K Birdsboro Materials Quarry (Dyer Trap Rock Quarry; Hay Creek Trap Rock Quarry), Hay Creek, Birdsboro, Berks County, Pennsylvania, USA

References:

Rocks & Min.: 23:914-915.

Rocks & Min.: 21:142-143.

ⓘ Okenite

Formula: Ca₁₀Si₁₈O₄₆ · 18H₂O

Locality: Dyer Quarry, Gibraltar, Birdsboro, Berks County, Pennsylvania, USA

ⓘ Opal

Formula: SiO₂ · nH₂O

Locality: Dyer Quarry, Gibraltar, Birdsboro, Berks County, Pennsylvania, USA

ⓘ Opal var. Opal-AN

Formula: SiO₂ · nH₂O

Locality: Dyer Quarry, Gibraltar, Birdsboro, Berks County, Pennsylvania, USA

ⓘ Palygorskite

Formula: ◻Al₂Mg₂◻₂Si₈O₂₀(OH)₂(H₂O)₄ · 4H₂O

Locality: Oley Valley Quarry (Oley Stone Quarry; Eastern Industries Quarry), Oley Township, Berks County, Pennsylvania, USA

ⓘ Pectolite

Formula: NaCa₂Si₃O₈(OH)

Locality: Dyer Quarry, Gibraltar, Birdsboro, Berks County, Pennsylvania, USA

ⓘ 'Phillipsite Subgroup'

Locality: Fritz Island Mines, Cumru Township, Berks County, Pennsylvania, USA

ⓘ Phlogopite

Formula: KMg₃(AlSi₃O₁₀)(OH)₂

Locality: Grace Mine, Morgantown, Berks County, Pennsylvania, USA

ⓘ Powellite

Formula: Ca(MoO₄)

Locality: Antietam Reservoir, Lower Alsace Township, Berks County, Pennsylvania, USA

ⓘ Prehnite

Formula: Ca₂Al₂Si₃O₁₀(OH)₂

Localities:

Dyer Quarry, Gibraltar, Birdsboro, Berks County, Pennsylvania, USA
Grace Mine, Morgantown, Berks County, Pennsylvania, USA
Interstate highway 176 roadcut, Morgantown, Berks County, Pennsylvania, USA
H&K Birdsboro Materials Quarry (Dyer Trap Rock Quarry; Hay Creek Trap Rock Quarry), Hay Creek, Birdsboro, Berks County, Pennsylvania, USA

References:

Grant (Apr 1974), PA Minerals (PM) (136), Keystone Newsletter

Rocks & Min.: 21:278

23:914-915.

Rocks & Min.: 21:142-143.

Rocks & Minerals (1955) 30:502

ⓘ Pyrite

Formula: FeS₂

Localities: Reported from at least 10 localities in this region.

References:

Dana 6:1067

Dana 7:II:255

Rocks & Min.: 17:340..

ⓘ Pyrrhotite

Formula: Fe_1-xS

Localities:

Olafsen Iron Mine, Huffs Church, Hereford Township, Berks County, Pennsylvania, USA
Grace Mine, Morgantown, Berks County, Pennsylvania, USA
Antietam Reservoir, Lower Alsace Township, Berks County, Pennsylvania, USA

References:

The Mineralogy of Pennsylvania 1966-1975

Robert C. Smith II ( (quoted B. L. Miller

1912, p.114) (quoted B. L. Miller

1912, p.

ⓘ Quartz

Formula: SiO₂

Localities: Reported from at least 9 localities in this region.

Description: Occurs as crystals.

References:

Rocks & Min.: 23:914-915.

ⓘ Quartz var. Chalcedony

Formula: SiO₂

Localities:

Henry Erwin & Sons Mine, Topton, Berks County, Pennsylvania, USA
Fritz Island Mines, Cumru Township, Berks County, Pennsylvania, USA

References:

Topo. & Geol. Sur. of Penna Rpt #4: The Min. Pigments of Penna.:34-36.

ⓘ Quartz var. Rock Crystal

Formula: SiO₂

Locality: Kirbyville, Berks County, Pennsylvania, USA

ⓘ Riebeckite

Formula: ◻[Na₂][Fe²⁺₃Fe³⁺₂]Si₈O₂₂(OH)₂

Locality: Dyer Quarry, Gibraltar, Birdsboro, Berks County, Pennsylvania, USA

ⓘ Safflorite

Formula: (Co,Ni,Fe)As₂

Localities:

Olafsen Iron Mine, Huffs Church, Hereford Township, Berks County, Pennsylvania, USA
Dyer Quarry, Gibraltar, Birdsboro, Berks County, Pennsylvania, USA

Habit: grains up to 1 cm in size

Colour: tin-white metalic

Description: in polished section, shows week pleochroism. occasionally occurs in moderatly wide twin lamellae. Safflorite at huffs church has particularly low cobalt content, and it strongly suggests that a Safflorite (fe) species be named to better describe the occurence here.

References:

The Mineralogy of Pennsylvania 1966-1975

Robert C. Smith II ( (quoted B. L. Miller

1912, p.114) (quoted B. L. Miller

1912, p.114)

ⓘ 'Scapolite'

Locality: Fritz Island Mines, Cumru Township, Berks County, Pennsylvania, USA

ⓘ 'Scapolite var. Wernerite'

Locality: Fritz Island Mines, Cumru Township, Berks County, Pennsylvania, USA

ⓘ Scolecite

Formula: CaAl₂Si₃O₁₀ · 3H₂O

Locality: H&K Birdsboro Materials Quarry (Dyer Trap Rock Quarry; Hay Creek Trap Rock Quarry), Hay Creek, Birdsboro, Berks County, Pennsylvania, USA

ⓘ 'Serpentine Subgroup'

Formula: D₃[Si₂O₅](OH)₄

Localities:

Jones Mine, Morgantown, Caernarvon Township, Berks County, Pennsylvania, USA
Fritz Island Mines, Cumru Township, Berks County, Pennsylvania, USA
Wheatfield Mine, Spring Township, Berks County, Pennsylvania, USA
Ruth Mine, Spring Township, Berks County, Pennsylvania, USA

References:

Ref.: Gordon, Samuel G. (1922), Mineralogy of Pennsylvania: 152.

ⓘ 'Serpentine Subgroup var. Retinalite'

Formula: D₃[Si₂O₅](OH)₄ D= Mg, Fe, Ni, Mn, Al, Zn

Localities:

Fritz Island Mines, Cumru Township, Berks County, Pennsylvania, USA
Wheatfield Mine, Spring Township, Berks County, Pennsylvania, USA
Ruth Mine, Spring Township, Berks County, Pennsylvania, USA

References:

Ref.: Gordon, Samuel G. (1922), Mineralogy of Pennsylvania: 153.

ⓘ Siderite ?

Formula: FeCO₃

Locality: Rittenhouse Gap Mine (Rittenhouse Gap Iron Mines), Rittenhouse Gap, Berks County, Pennsylvania, USA

Description: visually described/identified only

ⓘ Skutterudite

Formula: CoAs₃

Locality: Dyer Quarry, Gibraltar, Birdsboro, Berks County, Pennsylvania, USA

ⓘ Sphalerite

Formula: ZnS

Localities:

Grace Mine, Morgantown, Berks County, Pennsylvania, USA
Oley Valley Quarry (Oley Stone Quarry; Eastern Industries Quarry), Oley Township, Berks County, Pennsylvania, USA
H&K Birdsboro Materials Quarry (Dyer Trap Rock Quarry; Hay Creek Trap Rock Quarry), Hay Creek, Birdsboro, Berks County, Pennsylvania, USA

References:

Mineralogy of Pennsylvania-1976

Robert C. Smith, pg. 88

ⓘ Stellerite

Formula: Ca₄(Si₂₈Al₈)O₇₂ · 28H₂O

Locality: Dyer Quarry, Gibraltar, Birdsboro, Berks County, Pennsylvania, USA

ⓘ Stibnite ?

Formula: Sb₂S₃

Locality: Fritz Island Mines, Cumru Township, Berks County, Pennsylvania, USA

Description: Doubtful occurrence. Montgomery, Arthur (1969), Mineralogy of Pennsylvania: 4.

ⓘ 'Stilbite Subgroup'

Formula: M_6-7[Al_8-9Si_27-28O₇₂] · nH₂O

Localities: Reported from at least 6 localities in this region.

References:

Rocks & Min.: 21:278

23:914-915.

Rocks & Minerals (1955) 30:502

ⓘ Talc

Formula: Mg₃Si₄O₁₀(OH)₂

Localities:

Jones Mine, Morgantown, Caernarvon Township, Berks County, Pennsylvania, USA
Grace Mine, Morgantown, Berks County, Pennsylvania, USA
Fritz Island Mines, Cumru Township, Berks County, Pennsylvania, USA

References:

Rocks & Min.: 17:340.

ⓘ Tenorite ?

Formula: CuO

Locality: Dyer Quarry, Gibraltar, Birdsboro, Berks County, Pennsylvania, USA

ⓘ Thaumasite

Formula: Ca₃(SO₄)[Si(OH)₆](CO₃) · 12H₂O

Locality: H&K Birdsboro Materials Quarry (Dyer Trap Rock Quarry; Hay Creek Trap Rock Quarry), Hay Creek, Birdsboro, Berks County, Pennsylvania, USA

ⓘ Thomsonite-Ca

Formula: NaCa₂[Al₅Si₅O₂₀] · 6H₂O

Localities:

References:

Rocks & Min.: 21:278.

ⓘ 'Thomsonite Subgroup'

Locality: Fritz Island Mines, Cumru Township, Berks County, Pennsylvania, USA

ⓘ Thorite

Formula: Th(SiO₄)

Locality: Pennsylvania Uranium Mining Company Shaft, Shanesville, Earl Township, Berks County, Pennsylvania, USA

ⓘ Thorite var. Thorogummite

Formula: (Th,U)(SiO₄)_1-x(OH)_4x

Locality: Pennsylvania Uranium Mining Company Shaft, Shanesville, Earl Township, Berks County, Pennsylvania, USA

ⓘ Titanite

Formula: CaTi(SiO₄)O

Localities:

Dyer Quarry, Gibraltar, Birdsboro, Berks County, Pennsylvania, USA
Interstate highway 176 roadcut, Morgantown, Berks County, Pennsylvania, USA
Grace Mine, Morgantown, Berks County, Pennsylvania, USA
Pennsylvania Uranium Mining Company Shaft, Shanesville, Earl Township, Berks County, Pennsylvania, USA

References:

Rocks & Min.: 23:914-915.

Rocks & Minerals (1955) 30:502

✪ Tochilinite

Formula: Fe²⁺_5-6(Mg,Fe²⁺)₅S₆(OH)₁₀

Locality: Grace Mine, Morgantown, Berks County, Pennsylvania, USA

Habit: aggregate in Gypsum associated with enhydro inclusions, on calcite and laminate coatings on calcite

Colour: Black greasy Graphite-like, also coatings giving calcite a Bronzy appearance

Fluorescence: none

Description: The first US locality for Tochilinite, collected in the summer of 1975 by Byron Brookmeyer. Some of the most complete data published on the properties of Tochilinite were compiled using specimens collected by Mr. Brookmeyer at Grace mine.

ⓘ Tremolite

Formula: ◻Ca₂Mg₅(Si₈O₂₂)(OH)₂

Locality: Grace Mine, Morgantown, Berks County, Pennsylvania, USA

ⓘ Vesuvianite

Formula: Ca₁₉Fe³⁺Al₄(Al₆Mg₂)(◻₄)◻[Si₂O₇]₄[(SiO₄)₁₀]O(OH)₉

Locality: Fritz Island Mines, Cumru Township, Berks County, Pennsylvania, USA

ⓘ Wavellite

Formula: Al₃(PO₄)₂(OH,F)₃ · 5H₂O

Locality: Blandon, Maidencreek Township, Berks County, Pennsylvania, USA

ⓘ Zircon

Formula: Zr(SiO₄)

Locality: Blandon, Maidencreek Township, Berks County, Pennsylvania, USA

Gallery:

Cu₄(SO₄)(OH)₆ⓘ Brochantite

Brochantite, etc.

Jones Mine, Morgantown, Caernarvon Township, Berks County, Pennsylvania, USA

Brochantite, etc.

Jones Mine, Morgantown, Caernarvon Township, Berks County, Pennsylvania, USA

Brochantite, etc.

Jones Mine, Morgantown, Caernarvon Township, Berks County, Pennsylvania, USA

Cu₂(CO₃)(OH)₂ⓘ Malachite

Malachite

Jones Mine, Morgantown, Caernarvon Township, Berks County, Pennsylvania, USA

Malachite

Jones Mine, Morgantown, Caernarvon Township, Berks County, Pennsylvania, USA

Malachite

Jones Mine, Morgantown, Caernarvon Township, Berks County, Pennsylvania, USA

◻[Na₂][Fe²⁺₃Fe³⁺₂]Si₈O₂₂(OH)₂ⓘ Riebeckite

Riebeckite

Dyer Quarry, Gibraltar, Birdsboro, Berks County, Pennsylvania, USA

Riebeckite

Dyer Quarry, Gibraltar, Birdsboro, Berks County, Pennsylvania, USA

Riebeckite

Dyer Quarry, Gibraltar, Birdsboro, Berks County, Pennsylvania, USA

(Co,Ni,Fe)As₂ⓘ Safflorite

Safflorite, etc.

Olafsen Iron Mine, Huffs Church, Hereford Township, Berks County, Pennsylvania, USA

Safflorite, etc.

Olafsen Iron Mine, Huffs Church, Hereford Township, Berks County, Pennsylvania, USA

Safflorite, etc.

Olafsen Iron Mine, Huffs Church, Hereford Township, Berks County, Pennsylvania, USA

M_6-7[Al_8-9Si_27-28O₇₂] · nH₂Oⓘ 'Stilbite Subgroup'

Stilbite Subgroup, etc.

Grace Mine, Morgantown, Berks County, Pennsylvania, USA

Stilbite Subgroup, etc.

Grace Mine, Morgantown, Berks County, Pennsylvania, USA

Stilbite Subgroup, etc.

Grace Mine, Morgantown, Berks County, Pennsylvania, USA

Mg₃Si₄O₁₀(OH)₂ⓘ Talc

Talc, etc.

Grace Mine, Morgantown, Berks County, Pennsylvania, USA

Talc, etc.

Grace Mine, Morgantown, Berks County, Pennsylvania, USA

Talc, etc.

Grace Mine, Morgantown, Berks County, Pennsylvania, USA

Th(SiO₄)ⓘ Thorite

Thorite, etc.

Pennsylvania Uranium Mining Company Shaft, Shanesville, Earl Township, Berks County, Pennsylvania, USA

Thorite, etc.

Pennsylvania Uranium Mining Company Shaft, Shanesville, Earl Township, Berks County, Pennsylvania, USA

Thorite, etc.

Pennsylvania Uranium Mining Company Shaft, Shanesville, Earl Township, Berks County, Pennsylvania, USA

◻Ca₂Mg₅(Si₈O₂₂)(OH)₂ⓘ Tremolite

Tremolite, etc.

Grace Mine, Morgantown, Berks County, Pennsylvania, USA

Tremolite, etc.

Grace Mine, Morgantown, Berks County, Pennsylvania, USA

Tremolite, etc.

Grace Mine, Morgantown, Berks County, Pennsylvania, USA

Tremolite, etc.

Grace Mine, Morgantown, Berks County, Pennsylvania, USA

Tremolite, etc.

Grace Mine, Morgantown, Berks County, Pennsylvania, USA

Tremolite, etc.

Grace Mine, Morgantown, Berks County, Pennsylvania, USA

Tremolite, etc.

Grace Mine, Morgantown, Berks County, Pennsylvania, USA

Tremolite, etc.

Grace Mine, Morgantown, Berks County, Pennsylvania, USA

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
ⓘ	Copper	1.AA.05	Cu
ⓘ	Graphite	1.CB.05a	C
Group 2 - Sulphides and Sulfosalts
ⓘ	Chalcocite	2.BA.05	Cu₂S
ⓘ	Bornite	2.BA.15	Cu₅FeS₄
ⓘ	Sphalerite	2.CB.05a	ZnS
ⓘ	Chalcopyrite	2.CB.10a	CuFeS₂
ⓘ	Pyrrhotite	2.CC.10	Fe_1-xS
ⓘ	Galena	2.CD.10	PbS
ⓘ	Stibnite ?	2.DB.05	Sb₂S₃
ⓘ	Molybdenite	2.EA.30	MoS₂
ⓘ	Pyrite	2.EB.05a	FeS₂
ⓘ	Marcasite	2.EB.10a	FeS₂
ⓘ	Safflorite	2.EB.15a	(Co,Ni,Fe)As₂
ⓘ	Arsenopyrite	2.EB.20	FeAsS
ⓘ	Cobaltite	2.EB.25	CoAsS
ⓘ	Skutterudite	2.EC.05	CoAs₃
ⓘ	Tochilinite	2.FD.35	Fe²⁺_5-6(Mg,Fe²⁺)₅S₆(OH)₁₀
Group 3 - Halides
ⓘ	Fluorite	3.AB.25	CaF₂
Group 4 - Oxides and Hydroxides
ⓘ	Cuprite	4.AA.10	Cu₂O
ⓘ	Tenorite ?	4.AB.10	CuO
ⓘ	Magnetite	4.BB.05	Fe²⁺Fe³⁺₂O₄
ⓘ	Hematite	4.CB.05	Fe₂O₃
ⓘ	Quartz var. Chalcedony	4.DA.05	SiO₂
ⓘ		4.DA.05	SiO₂
ⓘ	var. Rock Crystal	4.DA.05	SiO₂
ⓘ	Opal var. Opal-AN	4.DA.10	SiO₂ · nH₂O
ⓘ		4.DA.10	SiO₂ · nH₂O
ⓘ	Brucite	4.FE.05	Mg(OH)₂
Group 5 - Nitrates and Carbonates
ⓘ	Siderite ?	5.AB.05	FeCO₃
ⓘ	Calcite	5.AB.05	CaCO₃
ⓘ	Dolomite	5.AB.10	CaMg(CO₃)₂
ⓘ	Cerussite	5.AB.15	PbCO₃
ⓘ	Aragonite	5.AB.15	CaCO₃
ⓘ	Azurite	5.BA.05	Cu₃(CO₃)₂(OH)₂
ⓘ	Malachite	5.BA.10	Cu₂(CO₃)(OH)₂
ⓘ	Aurichalcite	5.BA.15	(Zn,Cu)₅(CO₃)₂(OH)₆
ⓘ	Hydromagnesite	5.DA.05	Mg₅(CO₃)₄(OH)₂ · 4H₂O
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
ⓘ	Baryte	7.AD.35	BaSO₄
ⓘ	Celestine	7.AD.35	SrSO₄
ⓘ	Brochantite	7.BB.25	Cu₄(SO₄)(OH)₆
ⓘ	Gypsum var. Selenite	7.CD.40	CaSO₄ · 2H₂O
ⓘ		7.CD.40	CaSO₄ · 2H₂O
ⓘ	Thaumasite	7.DG.15	Ca₃(SO₄)[Si(OH)₆](CO₃) · 12H₂O
ⓘ	Powellite	7.GA.05	Ca(MoO₄)
ⓘ	Ferrimolybdite	7.GB.30	Fe₂(MoO₄)₃ · nH₂O
Group 8 - Phosphates, Arsenates and Vanadates
ⓘ	Fluorapatite	8.BN.05	Ca₅(PO₄)₃F
ⓘ	Hydroxylapatite	8.BN.05	Ca₅(PO₄)₃(OH)
ⓘ	Erythrite	8.CE.40	Co₃(AsO₄)₂ · 8H₂O
ⓘ	Wavellite	8.DC.50	Al₃(PO₄)₂(OH,F)₃ · 5H₂O
Group 9 - Silicates
ⓘ	Grossular	9.AD.25	Ca₃Al₂(SiO₄)₃
ⓘ	Almandine	9.AD.25	Fe²⁺₃Al₂(SiO₄)₃
ⓘ	Thorite var. Thorogummite	9.AD.30	(Th,U)(SiO₄)_1-x(OH)_4x
ⓘ	Zircon	9.AD.30	Zr(SiO₄)
ⓘ	Thorite	9.AD.30	Th(SiO₄)
ⓘ	Titanite	9.AG.15	CaTi(SiO₄)O
ⓘ	Datolite	9.AJ.20	CaB(SiO₄)(OH)
ⓘ	Epidote	9.BG.05a	(CaCa)(AlAlFe³⁺)O[Si₂O₇][SiO₄](OH)
ⓘ	Vesuvianite	9.BG.35	Ca₁₉Fe³⁺Al₄(Al₆Mg₂)(◻₄)◻[Si₂O₇]₄[(SiO₄)₁₀]O(OH)₉
ⓘ	Tremolite	9.DE.10	◻Ca₂Mg₅(Si₈O₂₂)(OH)₂
ⓘ	Actinolite	9.DE.10	◻Ca₂(Mg_4.5-2.5Fe_0.5-2.5)Si₈O₂₂(OH)₂
ⓘ	Ferro-hornblende	9.DE.10	◻Ca₂(Fe²⁺₄Al)(Si₇Al)O₂₂(OH)₂
ⓘ	Riebeckite	9.DE.25	◻[Na₂][Fe²⁺₃Fe³⁺₂]Si₈O₂₂(OH)₂
ⓘ	Pectolite	9.DG.05	NaCa₂Si₃O₈(OH)
ⓘ	Babingtonite	9.DK.05	Ca₂(Fe,Mn)FeSi₅O₁₄(OH)
ⓘ	Prehnite	9.DP.20	Ca₂Al₂Si₃O₁₀(OH)₂
ⓘ	Fluorapophyllite-(K)	9.EA.15	KCa₄(Si₈O₂₀)(F,OH) · 8H₂O
ⓘ	Okenite	9.EA.40	Ca₁₀Si₁₈O₄₆ · 18H₂O
ⓘ	Talc	9.EC.05	Mg₃Si₄O₁₀(OH)₂
ⓘ	Muscovite	9.EC.15	KAl₂(AlSi₃O₁₀)(OH)₂
ⓘ	Phlogopite	9.EC.20	KMg₃(AlSi₃O₁₀)(OH)₂
ⓘ	Clinochlore	9.EC.55	Mg₅Al(AlSi₃O₁₀)(OH)₈
ⓘ	var. Pennine	9.EC.55	Mg₅Al(AlSi₃O₁₀)(OH)₈
ⓘ	var. Ripidolite	9.EC.55	(Mg,Fe,Al)₆(Si,Al)₄O₁₀(OH)₈
ⓘ	var. Chromium-bearing Clinochlore	9.EC.55	Mg₅(Al,Cr)₂Si₃O₁₀(OH)₈
ⓘ	Kaolinite	9.ED.05	Al₂(Si₂O₅)(OH)₄
ⓘ	Antigorite	9.ED.15	Mg₃(Si₂O₅)(OH)₄
ⓘ	Allophane	9.ED.20	(Al₂O₃)(SiO₂)_1.3-2 · 2.5-3H₂O
ⓘ	Chrysocolla	9.ED.20	Cu_2-xAl_x(H_2-xSi₂O₅)(OH)₄ · nH₂O, x < 1
ⓘ	Palygorskite	9.EE.20	◻Al₂Mg₂◻₂Si₈O₂₀(OH)₂(H₂O)₄ · 4H₂O
ⓘ	Microcline	9.FA.30	K(AlSi₃O₈)
ⓘ	Albite	9.FA.35	Na(AlSi₃O₈)
ⓘ	Marialite	9.FB.15	Na₄Al₃Si₉O₂₄Cl
ⓘ	Scolecite	9.GA.05	CaAl₂Si₃O₁₀ · 3H₂O
ⓘ	Natrolite	9.GA.05	Na₂Al₂Si₃O₁₀ · 2H₂O
ⓘ	Mesolite	9.GA.05	Na₂Ca₂Si₉Al₆O₃₀ · 8H₂O
ⓘ	Thomsonite-Ca	9.GA.10	NaCa₂[Al₅Si₅O₂₀] · 6H₂O
ⓘ	Laumontite	9.GB.10	CaAl₂Si₄O₁₂ · 4H₂O
ⓘ	var. Leonhardite	9.GB.10	CaAl₂Si₄O₁₂ · 3H₂O
ⓘ	Stellerite	9.GE.15	Ca₄(Si₂₈Al₈)O₇₂ · 28H₂O
Unclassified
ⓘ	'Garnet Group'	-	X₃Z₂(SiO₄)₃
ⓘ	'Hornblende Root Name Group'	-	◻Ca₂(Z²⁺₄Z³⁺)(AlSi₇O₂₂)(OH,F,Cl)₂
ⓘ	'Feldspar Group'	-
ⓘ	'Gismondine Subgroup'	-
ⓘ	'Amphibole Supergroup var. Byssolite'	-	AX₂Z₅((Si,Al,Ti)₈O₂₂)(OH,F,Cl,O)₂
ⓘ	'Serpentine Subgroup'	-	D₃[Si₂O₅](OH)₄
ⓘ	'var. Retinalite'	-	D₃[Si₂O₅](OH)₄ D= Mg, Fe, Ni, Mn, Al, Zn
ⓘ	'Thomsonite Subgroup'	-
ⓘ	'Scapolite'	-
ⓘ	'var. Wernerite'	-
ⓘ	'Mica Group'	-
ⓘ	'Amphibole Supergroup'	-	AB₂C₅((Si,Al,Ti)₈O₂₂)(OH,F,Cl,O)₂
ⓘ	'Phillipsite Subgroup'	-
ⓘ	'Apophyllite Group'	-	AB₄[Si₈O₂₂]X · 8H₂O
ⓘ	'Biotite'	-	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
ⓘ	'Chabazite'	-
ⓘ	'Chlorite Group'	-
ⓘ	'Limonite'	-
ⓘ	'Deweylite'	-	Mg₄Si₃O₁₀ · 6H₂O ?
ⓘ	'Stilbite Subgroup'	-	M_6-7[Al_8-9Si_27-28O₇₂] · nH₂O
ⓘ	'Heulandite Subgroup'	-	(Na/Ca/K)_5-6[Al_8-9 Si_27-28 O₇₂] · nH₂O
ⓘ	'Apatite'	-	Ca₅(PO₄)₃(Cl/F/OH)

List of minerals for each chemical element

H	Hydrogen
H	ⓘ Actinolite	◻Ca₂(Mg_4.5-2.5Fe_0.5-2.5)Si₈O₂₂(OH)₂
H	ⓘ Allophane	(Al₂O₃)(SiO₂)_1.3-2 · 2.5-3H₂O
H	ⓘ Amphibole Supergroup	AB₂C₅((Si,Al,Ti)₈O₂₂)(OH,F,Cl,O)₂
H	ⓘ Antigorite	Mg₃(Si₂O₅)(OH)₄
H	ⓘ Apophyllite Group	AB₄[Si₈O₂₂]X · 8H₂O
H	ⓘ Aurichalcite	(Zn,Cu)₅(CO₃)₂(OH)₆
H	ⓘ Azurite	Cu₃(CO₃)₂(OH)₂
H	ⓘ Babingtonite	Ca₂(Fe,Mn)FeSi₅O₁₄(OH)
H	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
H	ⓘ Brochantite	Cu₄(SO₄)(OH)₆
H	ⓘ Brucite	Mg(OH)₂
H	ⓘ Chrysocolla	Cu_2-xAl_x(H_2-xSi₂O₅)(OH)₄ · nH₂O, x < 1
H	ⓘ Clinochlore	Mg₅Al(AlSi₃O₁₀)(OH)₈
H	ⓘ Deweylite	Mg₄Si₃O₁₀ · 6H₂O ?
H	ⓘ Datolite	CaB(SiO₄)(OH)
H	ⓘ Epidote	(CaCa)(AlAlFe³⁺)O[Si₂O₇][SiO₄](OH)
H	ⓘ Erythrite	Co₃(AsO₄)₂ · 8H₂O
H	ⓘ Ferrimolybdite	Fe₂(MoO₄)₃ · nH₂O
H	ⓘ Ferro-hornblende	◻Ca₂(Fe₄²⁺Al)(Si₇Al)O₂₂(OH)₂
H	ⓘ Fluorapophyllite-(K)	KCa₄(Si₈O₂₀)(F,OH) · 8H₂O
H	ⓘ Gypsum	CaSO₄ · 2H₂O
H	ⓘ Heulandite Subgroup	(Na/Ca/K)_5-6[Al_8-9 Si_27-28 O₇₂] · nH₂O
H	ⓘ Opal var. Opal-AN	SiO₂ · nH₂O
H	ⓘ Hydromagnesite	Mg₅(CO₃)₄(OH)₂ · 4H₂O
H	ⓘ Hydroxylapatite	Ca₅(PO₄)₃(OH)
H	ⓘ Clinochlore var. Chromium-bearing Clinochlore	Mg₅(Al,Cr)₂Si₃O₁₀(OH)₈
H	ⓘ Kaolinite	Al₂(Si₂O₅)(OH)₄
H	ⓘ Laumontite	CaAl₂Si₄O₁₂ · 4H₂O
H	ⓘ Malachite	Cu₂(CO₃)(OH)₂
H	ⓘ Mesolite	Na₂Ca₂Si₉Al₆O₃₀ · 8H₂O
H	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
H	ⓘ Natrolite	Na₂Al₂Si₃O₁₀ · 2H₂O
H	ⓘ Okenite	Ca₁₀Si₁₈O₄₆ · 18H₂O
H	ⓘ Opal	SiO₂ · nH₂O
H	ⓘ Palygorskite	◻Al₂Mg₂◻₂Si₈O₂₀(OH)₂(H₂O)₄ · 4H₂O
H	ⓘ Pectolite	NaCa₂Si₃O₈(OH)
H	ⓘ Phlogopite	KMg₃(AlSi₃O₁₀)(OH)₂
H	ⓘ Prehnite	Ca₂Al₂Si₃O₁₀(OH)₂
H	ⓘ Riebeckite	◻[Na₂][Fe₃²⁺Fe₂³⁺]Si₈O₂₂(OH)₂
H	ⓘ Clinochlore var. Ripidolite	(Mg,Fe,Al)₆(Si,Al)₄O₁₀(OH)₈
H	ⓘ Scolecite	CaAl₂Si₃O₁₀ · 3H₂O
H	ⓘ Stellerite	Ca₄(Si₂₈Al₈)O₇₂ · 28H₂O
H	ⓘ Stilbite Subgroup	M_6-7[Al_8-9Si_27-28O₇₂] · nH₂O
H	ⓘ Talc	Mg₃Si₄O₁₀(OH)₂
H	ⓘ Thaumasite	Ca₃(SO₄)[Si(OH)₆](CO₃) · 12H₂O
H	ⓘ Thomsonite-Ca	NaCa₂[Al₅Si₅O₂₀] · 6H₂O
H	ⓘ Thorite var. Thorogummite	(Th,U)(SiO₄)_1-x(OH)_4x
H	ⓘ Tochilinite	Fe²⁺_5-6(Mg,Fe²⁺)₅S₆(OH)₁₀
H	ⓘ Tremolite	◻Ca₂Mg₅(Si₈O₂₂)(OH)₂
H	ⓘ Vesuvianite	Ca₁₉Fe³⁺Al₄(Al₆Mg₂)(◻₄)◻[Si₂O₇]₄[(SiO₄)₁₀]O(OH)₉
H	ⓘ Wavellite	Al₃(PO₄)₂(OH,F)₃ · 5H₂O
H	ⓘ Gypsum var. Selenite	CaSO₄ · 2H₂O
H	ⓘ Hornblende Root Name Group	◻Ca₂(Z₄²⁺Z³⁺)(AlSi₇O₂₂)(OH,F,Cl)₂
H	ⓘ Clinochlore var. Pennine	Mg₅Al(AlSi₃O₁₀)(OH)₈
H	ⓘ Amphibole Supergroup var. Byssolite	AX₂Z₅((Si,Al,Ti)₈O₂₂)(OH,F,Cl,O)₂
H	ⓘ Serpentine Subgroup	D₃[Si₂O₅](OH)₄
H	ⓘ Laumontite var. Leonhardite	CaAl₂Si₄O₁₂ · 3H₂O
H	ⓘ Serpentine Subgroup var. Retinalite	D₃[Si₂O₅](OH)₄ D= Mg, Fe, Ni, Mn, Al, Zn
H	ⓘ Apatite	Ca₅(PO₄)₃(Cl/F/OH)
B	Boron
B	ⓘ Datolite	CaB(SiO₄)(OH)
C	Carbon
C	ⓘ Aragonite	CaCO₃
C	ⓘ Aurichalcite	(Zn,Cu)₅(CO₃)₂(OH)₆
C	ⓘ Azurite	Cu₃(CO₃)₂(OH)₂
C	ⓘ Calcite	CaCO₃
C	ⓘ Cerussite	PbCO₃
C	ⓘ Dolomite	CaMg(CO₃)₂
C	ⓘ Graphite	C
C	ⓘ Hydromagnesite	Mg₅(CO₃)₄(OH)₂ · 4H₂O
C	ⓘ Malachite	Cu₂(CO₃)(OH)₂
C	ⓘ Siderite	FeCO₃
C	ⓘ Thaumasite	Ca₃(SO₄)[Si(OH)₆](CO₃) · 12H₂O
O	Oxygen
O	ⓘ Actinolite	◻Ca₂(Mg_4.5-2.5Fe_0.5-2.5)Si₈O₂₂(OH)₂
O	ⓘ Albite	Na(AlSi₃O₈)
O	ⓘ Allophane	(Al₂O₃)(SiO₂)_1.3-2 · 2.5-3H₂O
O	ⓘ Amphibole Supergroup	AB₂C₅((Si,Al,Ti)₈O₂₂)(OH,F,Cl,O)₂
O	ⓘ Antigorite	Mg₃(Si₂O₅)(OH)₄
O	ⓘ Apophyllite Group	AB₄[Si₈O₂₂]X · 8H₂O
O	ⓘ Aragonite	CaCO₃
O	ⓘ Aurichalcite	(Zn,Cu)₅(CO₃)₂(OH)₆
O	ⓘ Azurite	Cu₃(CO₃)₂(OH)₂
O	ⓘ Almandine	Fe₃²⁺Al₂(SiO₄)₃
O	ⓘ Babingtonite	Ca₂(Fe,Mn)FeSi₅O₁₄(OH)
O	ⓘ Baryte	BaSO₄
O	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
O	ⓘ Brochantite	Cu₄(SO₄)(OH)₆
O	ⓘ Brucite	Mg(OH)₂
O	ⓘ Calcite	CaCO₃
O	ⓘ Celestine	SrSO₄
O	ⓘ Cerussite	PbCO₃
O	ⓘ Quartz var. Chalcedony	SiO₂
O	ⓘ Chrysocolla	Cu_2-xAl_x(H_2-xSi₂O₅)(OH)₄ · nH₂O, x < 1
O	ⓘ Clinochlore	Mg₅Al(AlSi₃O₁₀)(OH)₈
O	ⓘ Cuprite	Cu₂O
O	ⓘ Deweylite	Mg₄Si₃O₁₀ · 6H₂O ?
O	ⓘ Dolomite	CaMg(CO₃)₂
O	ⓘ Datolite	CaB(SiO₄)(OH)
O	ⓘ Epidote	(CaCa)(AlAlFe³⁺)O[Si₂O₇][SiO₄](OH)
O	ⓘ Erythrite	Co₃(AsO₄)₂ · 8H₂O
O	ⓘ Ferrimolybdite	Fe₂(MoO₄)₃ · nH₂O
O	ⓘ Ferro-hornblende	◻Ca₂(Fe₄²⁺Al)(Si₇Al)O₂₂(OH)₂
O	ⓘ Fluorapatite	Ca₅(PO₄)₃F
O	ⓘ Fluorapophyllite-(K)	KCa₄(Si₈O₂₀)(F,OH) · 8H₂O
O	ⓘ Grossular	Ca₃Al₂(SiO₄)₃
O	ⓘ Gypsum	CaSO₄ · 2H₂O
O	ⓘ Hematite	Fe₂O₃
O	ⓘ Heulandite Subgroup	(Na/Ca/K)_5-6[Al_8-9 Si_27-28 O₇₂] · nH₂O
O	ⓘ Opal var. Opal-AN	SiO₂ · nH₂O
O	ⓘ Hydromagnesite	Mg₅(CO₃)₄(OH)₂ · 4H₂O
O	ⓘ Hydroxylapatite	Ca₅(PO₄)₃(OH)
O	ⓘ Clinochlore var. Chromium-bearing Clinochlore	Mg₅(Al,Cr)₂Si₃O₁₀(OH)₈
O	ⓘ Kaolinite	Al₂(Si₂O₅)(OH)₄
O	ⓘ Laumontite	CaAl₂Si₄O₁₂ · 4H₂O
O	ⓘ Magnetite	Fe²⁺Fe₂³⁺O₄
O	ⓘ Malachite	Cu₂(CO₃)(OH)₂
O	ⓘ Marialite	Na₄Al₃Si₉O₂₄Cl
O	ⓘ Mesolite	Na₂Ca₂Si₉Al₆O₃₀ · 8H₂O
O	ⓘ Microcline	K(AlSi₃O₈)
O	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
O	ⓘ Natrolite	Na₂Al₂Si₃O₁₀ · 2H₂O
O	ⓘ Okenite	Ca₁₀Si₁₈O₄₆ · 18H₂O
O	ⓘ Opal	SiO₂ · nH₂O
O	ⓘ Palygorskite	◻Al₂Mg₂◻₂Si₈O₂₀(OH)₂(H₂O)₄ · 4H₂O
O	ⓘ Pectolite	NaCa₂Si₃O₈(OH)
O	ⓘ Phlogopite	KMg₃(AlSi₃O₁₀)(OH)₂
O	ⓘ Powellite	Ca(MoO₄)
O	ⓘ Prehnite	Ca₂Al₂Si₃O₁₀(OH)₂
O	ⓘ Quartz	SiO₂
O	ⓘ Riebeckite	◻[Na₂][Fe₃²⁺Fe₂³⁺]Si₈O₂₂(OH)₂
O	ⓘ Clinochlore var. Ripidolite	(Mg,Fe,Al)₆(Si,Al)₄O₁₀(OH)₈
O	ⓘ Scolecite	CaAl₂Si₃O₁₀ · 3H₂O
O	ⓘ Siderite	FeCO₃
O	ⓘ Stellerite	Ca₄(Si₂₈Al₈)O₇₂ · 28H₂O
O	ⓘ Stilbite Subgroup	M_6-7[Al_8-9Si_27-28O₇₂] · nH₂O
O	ⓘ Talc	Mg₃Si₄O₁₀(OH)₂
O	ⓘ Tenorite	CuO
O	ⓘ Thaumasite	Ca₃(SO₄)[Si(OH)₆](CO₃) · 12H₂O
O	ⓘ Thomsonite-Ca	NaCa₂[Al₅Si₅O₂₀] · 6H₂O
O	ⓘ Thorite	Th(SiO₄)
O	ⓘ Thorite var. Thorogummite	(Th,U)(SiO₄)_1-x(OH)_4x
O	ⓘ Titanite	CaTi(SiO₄)O
O	ⓘ Tochilinite	Fe²⁺_5-6(Mg,Fe²⁺)₅S₆(OH)₁₀
O	ⓘ Tremolite	◻Ca₂Mg₅(Si₈O₂₂)(OH)₂
O	ⓘ Vesuvianite	Ca₁₉Fe³⁺Al₄(Al₆Mg₂)(◻₄)◻[Si₂O₇]₄[(SiO₄)₁₀]O(OH)₉
O	ⓘ Wavellite	Al₃(PO₄)₂(OH,F)₃ · 5H₂O
O	ⓘ Zircon	Zr(SiO₄)
O	ⓘ Gypsum var. Selenite	CaSO₄ · 2H₂O
O	ⓘ Quartz var. Rock Crystal	SiO₂
O	ⓘ Hornblende Root Name Group	◻Ca₂(Z₄²⁺Z³⁺)(AlSi₇O₂₂)(OH,F,Cl)₂
O	ⓘ Clinochlore var. Pennine	Mg₅Al(AlSi₃O₁₀)(OH)₈
O	ⓘ Garnet Group	X₃Z₂(SiO₄)₃
O	ⓘ Amphibole Supergroup var. Byssolite	AX₂Z₅((Si,Al,Ti)₈O₂₂)(OH,F,Cl,O)₂
O	ⓘ Serpentine Subgroup	D₃[Si₂O₅](OH)₄
O	ⓘ Laumontite var. Leonhardite	CaAl₂Si₄O₁₂ · 3H₂O
O	ⓘ Serpentine Subgroup var. Retinalite	D₃[Si₂O₅](OH)₄ D= Mg, Fe, Ni, Mn, Al, Zn
O	ⓘ Apatite	Ca₅(PO₄)₃(Cl/F/OH)
F	Fluorine
F	ⓘ Amphibole Supergroup	AB₂C₅((Si,Al,Ti)₈O₂₂)(OH,F,Cl,O)₂
F	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
F	ⓘ Fluorapatite	Ca₅(PO₄)₃F
F	ⓘ Fluorapophyllite-(K)	KCa₄(Si₈O₂₀)(F,OH) · 8H₂O
F	ⓘ Fluorite	CaF₂
F	ⓘ Wavellite	Al₃(PO₄)₂(OH,F)₃ · 5H₂O
F	ⓘ Hornblende Root Name Group	◻Ca₂(Z₄²⁺Z³⁺)(AlSi₇O₂₂)(OH,F,Cl)₂
F	ⓘ Amphibole Supergroup var. Byssolite	AX₂Z₅((Si,Al,Ti)₈O₂₂)(OH,F,Cl,O)₂
F	ⓘ Apatite	Ca₅(PO₄)₃(Cl/F/OH)
Na	Sodium
Na	ⓘ Albite	Na(AlSi₃O₈)
Na	ⓘ Heulandite Subgroup	(Na/Ca/K)_5-6[Al_8-9 Si_27-28 O₇₂] · nH₂O
Na	ⓘ Marialite	Na₄Al₃Si₉O₂₄Cl
Na	ⓘ Mesolite	Na₂Ca₂Si₉Al₆O₃₀ · 8H₂O
Na	ⓘ Natrolite	Na₂Al₂Si₃O₁₀ · 2H₂O
Na	ⓘ Pectolite	NaCa₂Si₃O₈(OH)
Na	ⓘ Riebeckite	◻[Na₂][Fe₃²⁺Fe₂³⁺]Si₈O₂₂(OH)₂
Na	ⓘ Thomsonite-Ca	NaCa₂[Al₅Si₅O₂₀] · 6H₂O
Mg	Magnesium
Mg	ⓘ Actinolite	◻Ca₂(Mg_4.5-2.5Fe_0.5-2.5)Si₈O₂₂(OH)₂
Mg	ⓘ Antigorite	Mg₃(Si₂O₅)(OH)₄
Mg	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
Mg	ⓘ Brucite	Mg(OH)₂
Mg	ⓘ Clinochlore	Mg₅Al(AlSi₃O₁₀)(OH)₈
Mg	ⓘ Deweylite	Mg₄Si₃O₁₀ · 6H₂O ?
Mg	ⓘ Dolomite	CaMg(CO₃)₂
Mg	ⓘ Hydromagnesite	Mg₅(CO₃)₄(OH)₂ · 4H₂O
Mg	ⓘ Clinochlore var. Chromium-bearing Clinochlore	Mg₅(Al,Cr)₂Si₃O₁₀(OH)₈
Mg	ⓘ Palygorskite	◻Al₂Mg₂◻₂Si₈O₂₀(OH)₂(H₂O)₄ · 4H₂O
Mg	ⓘ Phlogopite	KMg₃(AlSi₃O₁₀)(OH)₂
Mg	ⓘ Clinochlore var. Ripidolite	(Mg,Fe,Al)₆(Si,Al)₄O₁₀(OH)₈
Mg	ⓘ Talc	Mg₃Si₄O₁₀(OH)₂
Mg	ⓘ Tochilinite	Fe²⁺_5-6(Mg,Fe²⁺)₅S₆(OH)₁₀
Mg	ⓘ Tremolite	◻Ca₂Mg₅(Si₈O₂₂)(OH)₂
Mg	ⓘ Vesuvianite	Ca₁₉Fe³⁺Al₄(Al₆Mg₂)(◻₄)◻[Si₂O₇]₄[(SiO₄)₁₀]O(OH)₉
Mg	ⓘ Clinochlore var. Pennine	Mg₅Al(AlSi₃O₁₀)(OH)₈
Mg	ⓘ Serpentine Subgroup var. Retinalite	D₃[Si₂O₅](OH)₄ D= Mg, Fe, Ni, Mn, Al, Zn
Al	Aluminium
Al	ⓘ Albite	Na(AlSi₃O₈)
Al	ⓘ Allophane	(Al₂O₃)(SiO₂)_1.3-2 · 2.5-3H₂O
Al	ⓘ Amphibole Supergroup	AB₂C₅((Si,Al,Ti)₈O₂₂)(OH,F,Cl,O)₂
Al	ⓘ Almandine	Fe₃²⁺Al₂(SiO₄)₃
Al	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
Al	ⓘ Chrysocolla	Cu_2-xAl_x(H_2-xSi₂O₅)(OH)₄ · nH₂O, x < 1
Al	ⓘ Clinochlore	Mg₅Al(AlSi₃O₁₀)(OH)₈
Al	ⓘ Epidote	(CaCa)(AlAlFe³⁺)O[Si₂O₇][SiO₄](OH)
Al	ⓘ Ferro-hornblende	◻Ca₂(Fe₄²⁺Al)(Si₇Al)O₂₂(OH)₂
Al	ⓘ Grossular	Ca₃Al₂(SiO₄)₃
Al	ⓘ Heulandite Subgroup	(Na/Ca/K)_5-6[Al_8-9 Si_27-28 O₇₂] · nH₂O
Al	ⓘ Clinochlore var. Chromium-bearing Clinochlore	Mg₅(Al,Cr)₂Si₃O₁₀(OH)₈
Al	ⓘ Kaolinite	Al₂(Si₂O₅)(OH)₄
Al	ⓘ Laumontite	CaAl₂Si₄O₁₂ · 4H₂O
Al	ⓘ Marialite	Na₄Al₃Si₉O₂₄Cl
Al	ⓘ Mesolite	Na₂Ca₂Si₉Al₆O₃₀ · 8H₂O
Al	ⓘ Microcline	K(AlSi₃O₈)
Al	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
Al	ⓘ Natrolite	Na₂Al₂Si₃O₁₀ · 2H₂O
Al	ⓘ Palygorskite	◻Al₂Mg₂◻₂Si₈O₂₀(OH)₂(H₂O)₄ · 4H₂O
Al	ⓘ Phlogopite	KMg₃(AlSi₃O₁₀)(OH)₂
Al	ⓘ Prehnite	Ca₂Al₂Si₃O₁₀(OH)₂
Al	ⓘ Clinochlore var. Ripidolite	(Mg,Fe,Al)₆(Si,Al)₄O₁₀(OH)₈
Al	ⓘ Scolecite	CaAl₂Si₃O₁₀ · 3H₂O
Al	ⓘ Stellerite	Ca₄(Si₂₈Al₈)O₇₂ · 28H₂O
Al	ⓘ Stilbite Subgroup	M_6-7[Al_8-9Si_27-28O₇₂] · nH₂O
Al	ⓘ Thomsonite-Ca	NaCa₂[Al₅Si₅O₂₀] · 6H₂O
Al	ⓘ Vesuvianite	Ca₁₉Fe³⁺Al₄(Al₆Mg₂)(◻₄)◻[Si₂O₇]₄[(SiO₄)₁₀]O(OH)₉
Al	ⓘ Wavellite	Al₃(PO₄)₂(OH,F)₃ · 5H₂O
Al	ⓘ Hornblende Root Name Group	◻Ca₂(Z₄²⁺Z³⁺)(AlSi₇O₂₂)(OH,F,Cl)₂
Al	ⓘ Clinochlore var. Pennine	Mg₅Al(AlSi₃O₁₀)(OH)₈
Al	ⓘ Amphibole Supergroup var. Byssolite	AX₂Z₅((Si,Al,Ti)₈O₂₂)(OH,F,Cl,O)₂
Al	ⓘ Laumontite var. Leonhardite	CaAl₂Si₄O₁₂ · 3H₂O
Al	ⓘ Serpentine Subgroup var. Retinalite	D₃[Si₂O₅](OH)₄ D= Mg, Fe, Ni, Mn, Al, Zn
Si	Silicon
Si	ⓘ Actinolite	◻Ca₂(Mg_4.5-2.5Fe_0.5-2.5)Si₈O₂₂(OH)₂
Si	ⓘ Albite	Na(AlSi₃O₈)
Si	ⓘ Allophane	(Al₂O₃)(SiO₂)_1.3-2 · 2.5-3H₂O
Si	ⓘ Amphibole Supergroup	AB₂C₅((Si,Al,Ti)₈O₂₂)(OH,F,Cl,O)₂
Si	ⓘ Antigorite	Mg₃(Si₂O₅)(OH)₄
Si	ⓘ Apophyllite Group	AB₄[Si₈O₂₂]X · 8H₂O
Si	ⓘ Almandine	Fe₃²⁺Al₂(SiO₄)₃
Si	ⓘ Babingtonite	Ca₂(Fe,Mn)FeSi₅O₁₄(OH)
Si	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
Si	ⓘ Quartz var. Chalcedony	SiO₂
Si	ⓘ Chrysocolla	Cu_2-xAl_x(H_2-xSi₂O₅)(OH)₄ · nH₂O, x < 1
Si	ⓘ Clinochlore	Mg₅Al(AlSi₃O₁₀)(OH)₈
Si	ⓘ Deweylite	Mg₄Si₃O₁₀ · 6H₂O ?
Si	ⓘ Datolite	CaB(SiO₄)(OH)
Si	ⓘ Epidote	(CaCa)(AlAlFe³⁺)O[Si₂O₇][SiO₄](OH)
Si	ⓘ Ferro-hornblende	◻Ca₂(Fe₄²⁺Al)(Si₇Al)O₂₂(OH)₂
Si	ⓘ Fluorapophyllite-(K)	KCa₄(Si₈O₂₀)(F,OH) · 8H₂O
Si	ⓘ Grossular	Ca₃Al₂(SiO₄)₃
Si	ⓘ Heulandite Subgroup	(Na/Ca/K)_5-6[Al_8-9 Si_27-28 O₇₂] · nH₂O
Si	ⓘ Opal var. Opal-AN	SiO₂ · nH₂O
Si	ⓘ Clinochlore var. Chromium-bearing Clinochlore	Mg₅(Al,Cr)₂Si₃O₁₀(OH)₈
Si	ⓘ Kaolinite	Al₂(Si₂O₅)(OH)₄
Si	ⓘ Laumontite	CaAl₂Si₄O₁₂ · 4H₂O
Si	ⓘ Marialite	Na₄Al₃Si₉O₂₄Cl
Si	ⓘ Mesolite	Na₂Ca₂Si₉Al₆O₃₀ · 8H₂O
Si	ⓘ Microcline	K(AlSi₃O₈)
Si	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
Si	ⓘ Natrolite	Na₂Al₂Si₃O₁₀ · 2H₂O
Si	ⓘ Okenite	Ca₁₀Si₁₈O₄₆ · 18H₂O
Si	ⓘ Opal	SiO₂ · nH₂O
Si	ⓘ Palygorskite	◻Al₂Mg₂◻₂Si₈O₂₀(OH)₂(H₂O)₄ · 4H₂O
Si	ⓘ Pectolite	NaCa₂Si₃O₈(OH)
Si	ⓘ Phlogopite	KMg₃(AlSi₃O₁₀)(OH)₂
Si	ⓘ Prehnite	Ca₂Al₂Si₃O₁₀(OH)₂
Si	ⓘ Quartz	SiO₂
Si	ⓘ Riebeckite	◻[Na₂][Fe₃²⁺Fe₂³⁺]Si₈O₂₂(OH)₂
Si	ⓘ Clinochlore var. Ripidolite	(Mg,Fe,Al)₆(Si,Al)₄O₁₀(OH)₈
Si	ⓘ Scolecite	CaAl₂Si₃O₁₀ · 3H₂O
Si	ⓘ Stellerite	Ca₄(Si₂₈Al₈)O₇₂ · 28H₂O
Si	ⓘ Stilbite Subgroup	M_6-7[Al_8-9Si_27-28O₇₂] · nH₂O
Si	ⓘ Talc	Mg₃Si₄O₁₀(OH)₂
Si	ⓘ Thaumasite	Ca₃(SO₄)[Si(OH)₆](CO₃) · 12H₂O
Si	ⓘ Thomsonite-Ca	NaCa₂[Al₅Si₅O₂₀] · 6H₂O
Si	ⓘ Thorite	Th(SiO₄)
Si	ⓘ Thorite var. Thorogummite	(Th,U)(SiO₄)_1-x(OH)_4x
Si	ⓘ Titanite	CaTi(SiO₄)O
Si	ⓘ Tremolite	◻Ca₂Mg₅(Si₈O₂₂)(OH)₂
Si	ⓘ Vesuvianite	Ca₁₉Fe³⁺Al₄(Al₆Mg₂)(◻₄)◻[Si₂O₇]₄[(SiO₄)₁₀]O(OH)₉
Si	ⓘ Zircon	Zr(SiO₄)
Si	ⓘ Quartz var. Rock Crystal	SiO₂
Si	ⓘ Hornblende Root Name Group	◻Ca₂(Z₄²⁺Z³⁺)(AlSi₇O₂₂)(OH,F,Cl)₂
Si	ⓘ Clinochlore var. Pennine	Mg₅Al(AlSi₃O₁₀)(OH)₈
Si	ⓘ Garnet Group	X₃Z₂(SiO₄)₃
Si	ⓘ Amphibole Supergroup var. Byssolite	AX₂Z₅((Si,Al,Ti)₈O₂₂)(OH,F,Cl,O)₂
Si	ⓘ Serpentine Subgroup	D₃[Si₂O₅](OH)₄
Si	ⓘ Laumontite var. Leonhardite	CaAl₂Si₄O₁₂ · 3H₂O
Si	ⓘ Serpentine Subgroup var. Retinalite	D₃[Si₂O₅](OH)₄ D= Mg, Fe, Ni, Mn, Al, Zn
P	Phosphorus
P	ⓘ Fluorapatite	Ca₅(PO₄)₃F
P	ⓘ Hydroxylapatite	Ca₅(PO₄)₃(OH)
P	ⓘ Wavellite	Al₃(PO₄)₂(OH,F)₃ · 5H₂O
P	ⓘ Apatite	Ca₅(PO₄)₃(Cl/F/OH)
S	Sulfur
S	ⓘ Arsenopyrite	FeAsS
S	ⓘ Baryte	BaSO₄
S	ⓘ Bornite	Cu₅FeS₄
S	ⓘ Brochantite	Cu₄(SO₄)(OH)₆
S	ⓘ Celestine	SrSO₄
S	ⓘ Chalcopyrite	CuFeS₂
S	ⓘ Chalcocite	Cu₂S
S	ⓘ Cobaltite	CoAsS
S	ⓘ Galena	PbS
S	ⓘ Gypsum	CaSO₄ · 2H₂O
S	ⓘ Marcasite	FeS₂
S	ⓘ Molybdenite	MoS₂
S	ⓘ Pyrite	FeS₂
S	ⓘ Pyrrhotite	Fe_1-xS
S	ⓘ Sphalerite	ZnS
S	ⓘ Stibnite	Sb₂S₃
S	ⓘ Thaumasite	Ca₃(SO₄)[Si(OH)₆](CO₃) · 12H₂O
S	ⓘ Tochilinite	Fe²⁺_5-6(Mg,Fe²⁺)₅S₆(OH)₁₀
S	ⓘ Gypsum var. Selenite	CaSO₄ · 2H₂O
Cl	Chlorine
Cl	ⓘ Amphibole Supergroup	AB₂C₅((Si,Al,Ti)₈O₂₂)(OH,F,Cl,O)₂
Cl	ⓘ Marialite	Na₄Al₃Si₉O₂₄Cl
Cl	ⓘ Hornblende Root Name Group	◻Ca₂(Z₄²⁺Z³⁺)(AlSi₇O₂₂)(OH,F,Cl)₂
Cl	ⓘ Amphibole Supergroup var. Byssolite	AX₂Z₅((Si,Al,Ti)₈O₂₂)(OH,F,Cl,O)₂
Cl	ⓘ Apatite	Ca₅(PO₄)₃(Cl/F/OH)
K	Potassium
K	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
K	ⓘ Fluorapophyllite-(K)	KCa₄(Si₈O₂₀)(F,OH) · 8H₂O
K	ⓘ Heulandite Subgroup	(Na/Ca/K)_5-6[Al_8-9 Si_27-28 O₇₂] · nH₂O
K	ⓘ Microcline	K(AlSi₃O₈)
K	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
K	ⓘ Phlogopite	KMg₃(AlSi₃O₁₀)(OH)₂
Ca	Calcium
Ca	ⓘ Actinolite	◻Ca₂(Mg_4.5-2.5Fe_0.5-2.5)Si₈O₂₂(OH)₂
Ca	ⓘ Aragonite	CaCO₃
Ca	ⓘ Babingtonite	Ca₂(Fe,Mn)FeSi₅O₁₄(OH)
Ca	ⓘ Calcite	CaCO₃
Ca	ⓘ Dolomite	CaMg(CO₃)₂
Ca	ⓘ Datolite	CaB(SiO₄)(OH)
Ca	ⓘ Epidote	(CaCa)(AlAlFe³⁺)O[Si₂O₇][SiO₄](OH)
Ca	ⓘ Ferro-hornblende	◻Ca₂(Fe₄²⁺Al)(Si₇Al)O₂₂(OH)₂
Ca	ⓘ Fluorapatite	Ca₅(PO₄)₃F
Ca	ⓘ Fluorapophyllite-(K)	KCa₄(Si₈O₂₀)(F,OH) · 8H₂O
Ca	ⓘ Fluorite	CaF₂
Ca	ⓘ Grossular	Ca₃Al₂(SiO₄)₃
Ca	ⓘ Gypsum	CaSO₄ · 2H₂O
Ca	ⓘ Heulandite Subgroup	(Na/Ca/K)_5-6[Al_8-9 Si_27-28 O₇₂] · nH₂O
Ca	ⓘ Hydroxylapatite	Ca₅(PO₄)₃(OH)
Ca	ⓘ Laumontite	CaAl₂Si₄O₁₂ · 4H₂O
Ca	ⓘ Mesolite	Na₂Ca₂Si₉Al₆O₃₀ · 8H₂O
Ca	ⓘ Okenite	Ca₁₀Si₁₈O₄₆ · 18H₂O
Ca	ⓘ Pectolite	NaCa₂Si₃O₈(OH)
Ca	ⓘ Powellite	Ca(MoO₄)
Ca	ⓘ Prehnite	Ca₂Al₂Si₃O₁₀(OH)₂
Ca	ⓘ Scolecite	CaAl₂Si₃O₁₀ · 3H₂O
Ca	ⓘ Stellerite	Ca₄(Si₂₈Al₈)O₇₂ · 28H₂O
Ca	ⓘ Thaumasite	Ca₃(SO₄)[Si(OH)₆](CO₃) · 12H₂O
Ca	ⓘ Thomsonite-Ca	NaCa₂[Al₅Si₅O₂₀] · 6H₂O
Ca	ⓘ Titanite	CaTi(SiO₄)O
Ca	ⓘ Tremolite	◻Ca₂Mg₅(Si₈O₂₂)(OH)₂
Ca	ⓘ Vesuvianite	Ca₁₉Fe³⁺Al₄(Al₆Mg₂)(◻₄)◻[Si₂O₇]₄[(SiO₄)₁₀]O(OH)₉
Ca	ⓘ Gypsum var. Selenite	CaSO₄ · 2H₂O
Ca	ⓘ Hornblende Root Name Group	◻Ca₂(Z₄²⁺Z³⁺)(AlSi₇O₂₂)(OH,F,Cl)₂
Ca	ⓘ Laumontite var. Leonhardite	CaAl₂Si₄O₁₂ · 3H₂O
Ca	ⓘ Apatite	Ca₅(PO₄)₃(Cl/F/OH)
Ti	Titanium
Ti	ⓘ Amphibole Supergroup	AB₂C₅((Si,Al,Ti)₈O₂₂)(OH,F,Cl,O)₂
Ti	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
Ti	ⓘ Titanite	CaTi(SiO₄)O
Ti	ⓘ Amphibole Supergroup var. Byssolite	AX₂Z₅((Si,Al,Ti)₈O₂₂)(OH,F,Cl,O)₂
Cr	Chromium
Cr	ⓘ Clinochlore var. Chromium-bearing Clinochlore	Mg₅(Al,Cr)₂Si₃O₁₀(OH)₈
Mn	Manganese
Mn	ⓘ Babingtonite	Ca₂(Fe,Mn)FeSi₅O₁₄(OH)
Mn	ⓘ Serpentine Subgroup var. Retinalite	D₃[Si₂O₅](OH)₄ D= Mg, Fe, Ni, Mn, Al, Zn
Fe	Iron
Fe	ⓘ Actinolite	◻Ca₂(Mg_4.5-2.5Fe_0.5-2.5)Si₈O₂₂(OH)₂
Fe	ⓘ Arsenopyrite	FeAsS
Fe	ⓘ Almandine	Fe₃²⁺Al₂(SiO₄)₃
Fe	ⓘ Babingtonite	Ca₂(Fe,Mn)FeSi₅O₁₄(OH)
Fe	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
Fe	ⓘ Bornite	Cu₅FeS₄
Fe	ⓘ Chalcopyrite	CuFeS₂
Fe	ⓘ Epidote	(CaCa)(AlAlFe³⁺)O[Si₂O₇][SiO₄](OH)
Fe	ⓘ Ferrimolybdite	Fe₂(MoO₄)₃ · nH₂O
Fe	ⓘ Ferro-hornblende	◻Ca₂(Fe₄²⁺Al)(Si₇Al)O₂₂(OH)₂
Fe	ⓘ Hematite	Fe₂O₃
Fe	ⓘ Magnetite	Fe²⁺Fe₂³⁺O₄
Fe	ⓘ Marcasite	FeS₂
Fe	ⓘ Pyrite	FeS₂
Fe	ⓘ Pyrrhotite	Fe_1-xS
Fe	ⓘ Riebeckite	◻[Na₂][Fe₃²⁺Fe₂³⁺]Si₈O₂₂(OH)₂
Fe	ⓘ Clinochlore var. Ripidolite	(Mg,Fe,Al)₆(Si,Al)₄O₁₀(OH)₈
Fe	ⓘ Safflorite	(Co,Ni,Fe)As₂
Fe	ⓘ Siderite	FeCO₃
Fe	ⓘ Tochilinite	Fe²⁺_5-6(Mg,Fe²⁺)₅S₆(OH)₁₀
Fe	ⓘ Vesuvianite	Ca₁₉Fe³⁺Al₄(Al₆Mg₂)(◻₄)◻[Si₂O₇]₄[(SiO₄)₁₀]O(OH)₉
Fe	ⓘ Serpentine Subgroup var. Retinalite	D₃[Si₂O₅](OH)₄ D= Mg, Fe, Ni, Mn, Al, Zn
Co	Cobalt
Co	ⓘ Cobaltite	CoAsS
Co	ⓘ Erythrite	Co₃(AsO₄)₂ · 8H₂O
Co	ⓘ Safflorite	(Co,Ni,Fe)As₂
Co	ⓘ Skutterudite	CoAs₃
Ni	Nickel
Ni	ⓘ Safflorite	(Co,Ni,Fe)As₂
Ni	ⓘ Serpentine Subgroup var. Retinalite	D₃[Si₂O₅](OH)₄ D= Mg, Fe, Ni, Mn, Al, Zn
Cu	Copper
Cu	ⓘ Aurichalcite	(Zn,Cu)₅(CO₃)₂(OH)₆
Cu	ⓘ Azurite	Cu₃(CO₃)₂(OH)₂
Cu	ⓘ Bornite	Cu₅FeS₄
Cu	ⓘ Brochantite	Cu₄(SO₄)(OH)₆
Cu	ⓘ Chalcopyrite	CuFeS₂
Cu	ⓘ Chalcocite	Cu₂S
Cu	ⓘ Chrysocolla	Cu_2-xAl_x(H_2-xSi₂O₅)(OH)₄ · nH₂O, x < 1
Cu	ⓘ Cuprite	Cu₂O
Cu	ⓘ Copper	Cu
Cu	ⓘ Malachite	Cu₂(CO₃)(OH)₂
Cu	ⓘ Tenorite	CuO
Zn	Zinc
Zn	ⓘ Aurichalcite	(Zn,Cu)₅(CO₃)₂(OH)₆
Zn	ⓘ Sphalerite	ZnS
Zn	ⓘ Serpentine Subgroup var. Retinalite	D₃[Si₂O₅](OH)₄ D= Mg, Fe, Ni, Mn, Al, Zn
As	Arsenic
As	ⓘ Arsenopyrite	FeAsS
As	ⓘ Cobaltite	CoAsS
As	ⓘ Erythrite	Co₃(AsO₄)₂ · 8H₂O
As	ⓘ Safflorite	(Co,Ni,Fe)As₂
As	ⓘ Skutterudite	CoAs₃
Sr	Strontium
Sr	ⓘ Celestine	SrSO₄
Zr	Zirconium
Zr	ⓘ Zircon	Zr(SiO₄)
Mo	Molybdenum
Mo	ⓘ Ferrimolybdite	Fe₂(MoO₄)₃ · nH₂O
Mo	ⓘ Molybdenite	MoS₂
Mo	ⓘ Powellite	Ca(MoO₄)
Sb	Antimony
Sb	ⓘ Stibnite	Sb₂S₃
Ba	Barium
Ba	ⓘ Baryte	BaSO₄
Pb	Lead
Pb	ⓘ Cerussite	PbCO₃
Pb	ⓘ Galena	PbS
Th	Thorium
Th	ⓘ Thorite	Th(SiO₄)
Th	ⓘ Thorite var. Thorogummite	(Th,U)(SiO₄)_1-x(OH)_4x
U	Uranium
U	ⓘ Thorite var. Thorogummite	(Th,U)(SiO₄)_1-x(OH)_4x

Fossils

There are 12 fossil localities from the PaleoBioDB database within this region.

BETA TEST - These data are provided on an experimental basis and are taken from external databases. Mindat.org has no control currently over the accuracy of these data.

Occurrences

Youngest Fossil Listed

201 Ma (Early Jurassic)

Oldest Fossil Listed

383 Ma (Middle Devonian)

Stratigraphic Units

Click here to view 7 stratigraphic units.

Fossils from Region

Click here to show the list.

Accepted Name	Hierarchy	Age
Cariniferella genus	Animalia : Brachiopoda : Rhynchonellata : Orthida : Dalmanellidae : *Cariniferella*	382.7 - 372.2 Ma Late/Upper Devonian
Douvillina genus	Animalia : Brachiopoda : Strophomenata : Strophomenida : Douvillinidae : *Douvillina*	382.7 - 372.2 Ma Late/Upper Devonian
Nervostrophia genus	Animalia : Brachiopoda : Strophomenata : Strophomenida : Leptostrophiidae : *Nervostrophia*	382.7 - 372.2 Ma Late/Upper Devonian
Cupularostrum genus	Animalia : Brachiopoda : Rhynchonellata : Rhynchonellida : Trigonirhynchiidae : *Cupularostrum*	382.7 - 372.2 Ma Late/Upper Devonian
Warrenella genus	Animalia : Brachiopoda : Rhynchonellata : Spiriferida : Reticulariidae : *Warrenella*	382.7 - 372.2 Ma Late/Upper Devonian
Crocodylomorpha unranked clade	Animalia : Chordata : Reptilia : Eosuchia : Crocodylomorpha	208.5 - 201.3 Ma Mesozoic
Rhynchosauroides genus	Animalia : Chordata : Reptilia : Rhynchocephalia : *Rhynchosauroides*	228 - 201.3 Ma Mesozoic
Grallator (Eubrontes) subgenus	Animalia : Chordata : Saurischia : Eubrontidae : *Grallator (Eubrontes)*	228 - 201.3 Ma Mesozoic
Eubrontes giganteus species	Animalia : Chordata : Saurischia : Eubrontidae : Grallator (Eubrontes) : *Eubrontes giganteus*	208.5 - 201.3 Ma Mesozoic
Batrachopus genus	Animalia : Chordata : Reptilia : Crocodylia : Batrachopodidae : *Batrachopus*	228 - 201.3 Ma Mesozoic
Anchisauripus milfordensis species	Animalia : Chordata : Saurischia : Eubrontidae : Grallator (Eubrontes) : *Anchisauripus milfordensis*	228 - 201.3 Ma Mesozoic
Brachychirotherium genus	Animalia : Chordata : Reptilia : Chirotheriidae : *Brachychirotherium*	228 - 201.3 Ma Mesozoic
Chirotherium lulli species	Animalia : Chordata : Reptilia : Chirotheriidae : Chirotherium : *Chirotherium lulli*	208.5 - 201.3 Ma Mesozoic
Gwyneddichnium genus	Animalia : Chordata : Reptilia : Tanystropheidae : *Gwyneddichnium*	228 - 208.5 Ma Late/Upper Triassic
Palaeoneilo constricta species	Animalia : Mollusca : Bivalvia : Nuculanida : Palaeoneilo : *Palaeoneilo constricta*	382.7 - 372.2 Ma Late/Upper Devonian

Fossil Localities

Click to show 12 fossil localities

Other Databases

Wikipedia:	https://en.wikipedia.org/wiki/Berks_County,_Pennsylvania
Wikidata ID:	Q490920
GeoNames ID:	5180052

Localities in this Region

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North America PlateTectonic Plate

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References

Sloto, Ronald A. (2016) The Mines and Minerals of Berks County, Pennsylvania (Independently published).

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