North Street mall, Danbury, Fairfield County, Connecticut, USAi
| Regional Level Types | |
|---|---|
| North Street mall | - not defined - |
| Danbury | Municipality |
| Fairfield County | County |
| Connecticut | State |
| USA | Country |
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Key
Latitude & Longitude (WGS84):
41° 24' 42'' North , 73° 27' 20'' West
Latitude & Longitude (decimal):
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Danbury | 84,657 (2017) | 1.9km |
| Bethel | 9,549 (2017) | 5.7km |
| New Fairfield | 14,126 (2017) | 6.6km |
| Putnam Lake | 3,844 (2017) | 9.4km |
| Peach Lake | 1,629 (2017) | 11.3km |
Because they are immediately adjacent and have similar reported mineralogy, this locality is a combination of minerals reported at the mall situated NE of the intersection of Padanaram Road and Hayestown Avenue during its construction and minerals reported by Januzzi (1965, 1976 and 1994) directly west of this intersection. The latter place was reported by Januzzi as "a small commercial site" constructed around 1974. He noted the "considerable removal of rock" at that time.
A few extant buildings could meet this criterion. A review of Danbury tax assessor's records and on-line aerial photographs indicate that the mall was built in 1960, so is too old. An auto repair garage and fueling station, just SW of this intersection on the west side of the intersection of North Street and Padanaram Road, was built in 1964 (Januzzi, 1965). It has retaining walls and cuts into the hill on its west, south and north sides, but also appears too old to be this locality. A third building just NW of this intersection and on the east side of Padanaram Road, currently a bank, was completed in 1976, so this must be the site referred to by Januzzi (1976).
Januzzi proposed that the mineralogy at the "small commercial site" is similar to that found at the lost danburite type locality and went so far as to include danburite in his list of minerals from it, although he never stated actually finding that mineral nor did he describe any examples from there or show any photos of them. The controversy regarding the danburite type locality is discussed at its mindat page http://www.mindat.org/loc-243666.html. This page presents information about minerals he did report finding at the "small commercial site" in their own right. Many are listed as unconfirmed due to a lack of reported details, but many are likely present given the general mineralogy of the area. Little information is recorded about the characteristics of the actual mall site aside from the list provided in Weber and Sullivan (1995), much of which may have actually come from Januzzi. This makes sense considering the bank is within the mall parking lot.
Interestingly, the impure marble assemblages from here have a generally more coarse-grained nature and different mineralogy than that of the typical Stockbridge Marble found in the area. The Cambro-Ordovician Stockbridge tends to be fine-grained and with tremolite and fine-grained phlogopite and chondrodite the primary accessories. Samples from this site are coarser-grained and contain accessory actinolite, spinel, phlogopite, chondrodite and forsterite with a general character similar to the Proterozoic Franklin Marble, especially like samples from the Limecrest Quarry in Sparta, NJ. The bedrock at the locality is actually mapped as Proterozoic Granitic Gneiss, with many such outcrops all around. The Stockbridge underlies an area at least 1/4 mile south. Thus, the marble here may be Proterozoic, and if so would be the only such occurrence in Connecticut. This possibility needs testing.
Coordinates are for the intersection of North Street, Padanaram Road, and Hayestown Avenue.
Select Mineral List Type
Standard Detailed Strunz Dana Chemical ElementsDetailed Mineral List:
| ⓘ Actinolite Formula: ☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2 Habit: elongated prisms Colour: dark green Description: Massive to subhedral elongated crystals in calc-silicate rocks Reference: Januzzi, Ronald E. (1976): Mineral Localities of Connecticut and Southeastern New York State. The Mineralogical Press, Danbury, Connecticut: 192-201.; Former Ronald Januzzi collection. |
| ⓘ Albite Formula: Na(AlSi3O8) Habit: anhedral grains Colour: white to gray Description: Feldspar matrix for many of the rarer minerals, a minor component of calc-silicate rocks. Reference: Former Ronald Januzzi collection |
| ⓘ 'Allanite Group' Formula: {A12+REE3+}{M3+2M32+}(Si2O7)(SiO4)O(OH) Habit: elongated prismatic to anhedral grains Colour: dark greenish-black to brownish black Description: "predominantly as dark greenish-black anhedral grains of fair size embedded in masses of scapolite" Januzzi (1976). Januzzi (1994) includes a photo. Specimen formerly in his collection includes prismatic crystals to 3 cm in a albite/quartz/microcline/biotite matrix. Crystals appear slighty glassy and metamict. Reference: Januzzi, Ronald E. (1976): Mineral Localities of Connecticut and Southeastern New York State. The Mineralogical Press, Danbury, Connecticut: 192-201; Januzzi, Ronald E. (1994), Mineral Data Book - Western Connecticut and Environs. The Mineralogical Press, Danbury, Connecticut; Weber, Marcelle H. and Earle C. Sullivan. (1995): Connecticut Mineral Locality Index. Rocks & Minerals (Connecticut Issue): 70 (6): 397.; former Ronald Januzzi collection. |
| ⓘ Almandine ? Formula: Fe2+3Al2(SiO4)3 Description: Included in a list without details. Reference: Januzzi, Ronald E. (1976): Mineral Localities of Connecticut and Southeastern New York State. The Mineralogical Press, Danbury, Connecticut: 192-201. |
| ⓘ 'Amphibole Supergroup' ? Formula: AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2 Description: Included in a list of minerals with no details. Reference: Januzzi, Ronald E. (1976): Mineral Localities of Connecticut and Southeastern New York State. The Mineralogical Press, Danbury, Connecticut: 192-201. |
| ⓘ 'Amphibole Supergroup var: Uralite' ? Formula: AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2 Description: Included in a list of minerals with no details. Reference: Januzzi, Ronald E. (1976): Mineral Localities of Connecticut and Southeastern New York State. The Mineralogical Press, Danbury, Connecticut: 192-201. |
| ⓘ Aragonite ? Formula: CaCO3 Description: Included in a list of minerals without details. Reference: Januzzi, Ronald E. (1976): Mineral Localities of Connecticut and Southeastern New York State. The Mineralogical Press, Danbury, Connecticut: 192-201. |
| ⓘ Augite Formula: (CaxMgyFez)(Mgy1Fez1)Si2O6 Description: Part of the assemblage quartz, feldspar, pyroxene, amphibole, sphene, zircon and biotite. Reference: Januzzi, Ronald E. (1976): Mineral Localities of Connecticut and Southeastern New York State. The Mineralogical Press, Danbury, Connecticut: 192-201. |
| ⓘ 'Biotite' Formula: K(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2 Description: Part of the assemblage quartz, feldspar, pyroxene, amphibole, sphene, zircon and biotite. Reference: Januzzi, Ronald E. (1976): Mineral Localities of Connecticut and Southeastern New York State. The Mineralogical Press, Danbury, Connecticut: 192-201. |
| ⓘ 'Brewsterite' ? Description: Included in a list of minerals with no details. Reference: Januzzi, Ronald E. (1976): Mineral Localities of Connecticut and Southeastern New York State. The Mineralogical Press, Danbury, Connecticut: 192-201. |
| ⓘ Calcite Formula: CaCO3 Habit: anhedral crystalline masses Colour: white to gray Description: In the assemblage calcite, pyroxene, amphibole, sphene, datolite. Also with chondrodite, phlogopite, spinel, forsterite. Reference: Januzzi, Ronald E. (1976): Mineral Localities of Connecticut and Southeastern New York State. The Mineralogical Press, Danbury, Connecticut: 192-201.; Former Ronald Januzzi collection. |
| ⓘ 'Chabazite' ? Description: Included in a list of minerals with no details provided. Reference: Januzzi, Ronald E. (1976): Mineral Localities of Connecticut and Southeastern New York State. The Mineralogical Press, Danbury, Connecticut: 192-201. |
| ⓘ Chalcopyrite ? Formula: CuFeS2 Description: Included in a list of minerals with no details provided. Reference: Januzzi, Ronald E. (1976): Mineral Localities of Connecticut and Southeastern New York State. The Mineralogical Press, Danbury, Connecticut: 192-201. |
| ⓘ Chondrodite Formula: (Mg,Fe2+)5(SiO4)2(F,OH)2 Habit: anhedral to subhedral Colour: reddish-orange Description: "It occurs as anhedral to subhedral crystals and crystal aggregates, whose individual grains range from microscopic to macroscopic in size. I am most impressed, however, by the color of the chondrodite which is often a beautiful reddish-orange on freshly exposed surfaces of the limestone." Januzzi (1976). Reference: Januzzi, Ronald E. (1976): Mineral Localities of Connecticut and Southeastern New York State. The Mineralogical Press, Danbury, Connecticut: 192-201; Weber, Marcelle H. and Earle C. Sullivan. (1995): Connecticut Mineral Locality Index. Rocks & Minerals (Connecticut Issue): 70 (6): 397. |
| ⓘ Formula: CaB2Si2O8 Description: Speculation by Januzzi based on conclusion that the site's minerals are similar to the danburite type locality's. No danburite finds or descriptions are actually documented in the references. Reference: Januzzi, Ronald E. (1976): Mineral Localities of Connecticut and Southeastern New York State. The Mineralogical Press, Danbury, Connecticut: 192-201. |
| ⓘ Datolite Formula: CaB(SiO4)(OH) Habit: fine granular crystal aggregates Colour: whitish Description: "as fine granular crystal aggregates having whitish color in mass, many of them being transparent under the microscope. Associated minerals include: calcite, pyroxene, amphibole, and sphene." Januzzi (1976). Januzzi (1994) includes a photograph. Reference: Januzzi, Ronald E. (1976): Mineral Localities of Connecticut and Southeastern New York State. The Mineralogical Press, Danbury, Connecticut: 192-201; Januzzi, Ronald E. (1994), Mineral Data Book - Western Connecticut and Environs. The Mineralogical Press, Danbury, Connecticut. |
| ⓘ Diopside Formula: CaMgSi2O6 Habit: anhedral Colour: pale green Description: Anhedral grains in calc-silicate rocks. Reference: Januzzi, Ronald E. (1976): Mineral Localities of Connecticut and Southeastern New York State. The Mineralogical Press, Danbury, Connecticut: 192-201.; Former Ronald Januzzi collection. |
| ⓘ Dolomite ? Formula: CaMg(CO3)2 Description: Included in a list of minerals with no details. Reference: Januzzi, Ronald E. (1976): Mineral Localities of Connecticut and Southeastern New York State. The Mineralogical Press, Danbury, Connecticut: 192-201. |
| ⓘ Dumortierite ? Formula: (Al,Fe3+)7(SiO4)3(BO3)O3 Habit: acicular Colour: bright blue Description: A few concentrations of tiny acicular crystals in one specimen of coarse-grained albite/quartz/biotite gneiss matrix. Reference: Former Ronald Januzzi collection |
| ⓘ Epidote ? Formula: {Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH) Description: Included in a list of minerals with no details. Reference: Januzzi, Ronald E. (1976): Mineral Localities of Connecticut and Southeastern New York State. The Mineralogical Press, Danbury, Connecticut: 192-201. |
| ⓘ Fluorapatite ? Formula: Ca5(PO4)3F Description: Included in a list of minerals with no details. Reference: Januzzi, Ronald E. (1976): Mineral Localities of Connecticut and Southeastern New York State. The Mineralogical Press, Danbury, Connecticut: 192-201. |
| ⓘ Fluorite ? Formula: CaF2 Description: Included in a list of minerals with no details. Reference: Januzzi, Ronald E. (1976): Mineral Localities of Connecticut and Southeastern New York State. The Mineralogical Press, Danbury, Connecticut: 192-201. |
| ⓘ Forsterite Formula: Mg2SiO4 Habit: Anhedral grains Colour: gray Description: Coarse anhedral grains in marble. Reference: Januzzi, Ronald E. (1976): Mineral Localities of Connecticut and Southeastern New York State. The Mineralogical Press, Danbury, Connecticut: 192-201.; Wesleyan University collection. |
| ⓘ Goethite ? Formula: α-Fe3+O(OH) Description: Included in a list of minerals with no details. Reference: Januzzi, Ronald E. (1976): Mineral Localities of Connecticut and Southeastern New York State. The Mineralogical Press, Danbury, Connecticut: 192-201. |
| ⓘ Graphite Formula: C Colour: gray Description: "Very rich specimens of graphite occurred not far from the end of North Street on Padanaram Road", Januzzi (1994), which includes a photo. Reference: Januzzi, Ronald E. (1976): Mineral Localities of Connecticut and Southeastern New York State. The Mineralogical Press, Danbury, Connecticut: 192-201; Januzzi, Ronald E. (1994), Mineral Data Book - Western Connecticut and Environs. The Mineralogical Press, Danbury, Connecticut; Weber, Marcelle H. and Earle C. Sullivan. (1995): Connecticut Mineral Locality Index. Rocks & Minerals (Connecticut Issue): 70 (6): 397. |
| ⓘ Hematite ? Formula: Fe2O3 Description: Included in a list of minerals with no details. Reference: Januzzi, Ronald E. (1976): Mineral Localities of Connecticut and Southeastern New York State. The Mineralogical Press, Danbury, Connecticut: 192-201. |
| ⓘ 'Heulandite subgroup' ? Description: Included in a list of minerals with no details. Reference: Januzzi, Ronald E. (1976): Mineral Localities of Connecticut and Southeastern New York State. The Mineralogical Press, Danbury, Connecticut: 192-201. |
| ⓘ 'Hornblende' Description: Present in most of the noted mineral assemblages, generally as "amphibole". Reference: Januzzi, Ronald E. (1976): Mineral Localities of Connecticut and Southeastern New York State. The Mineralogical Press, Danbury, Connecticut: 192-201. |
| ⓘ Ilmenite ? Formula: Fe2+TiO3 Description: Included in a list of minerals with no details. Reference: Januzzi, Ronald E. (1976): Mineral Localities of Connecticut and Southeastern New York State. The Mineralogical Press, Danbury, Connecticut: 192-201. |
| ⓘ Laumontite ? Formula: CaAl2Si4O12 · 4H2O Description: Included in a list of minerals with no details. Reference: Januzzi, Ronald E. (1976): Mineral Localities of Connecticut and Southeastern New York State. The Mineralogical Press, Danbury, Connecticut: 192-201. |
| ⓘ 'Limonite' Formula: (Fe,O,OH,H2O) Description: Ubiquitous. Reference: Januzzi, Ronald E. (1976): Mineral Localities of Connecticut and Southeastern New York State. The Mineralogical Press, Danbury, Connecticut: 192-201. |
| ⓘ Magnetite ? Formula: Fe2+Fe3+2O4 Description: Included in a list of minerals with no details. Reference: Januzzi, Ronald E. (1976): Mineral Localities of Connecticut and Southeastern New York State. The Mineralogical Press, Danbury, Connecticut: 192-201. |
| ⓘ Microcline Formula: K(AlSi3O8) Description: Included in a list of minerals with no details, but very likely one of the minerals referred to as "feldspar". Reference: Januzzi, Ronald E. (1976): Mineral Localities of Connecticut and Southeastern New York State. The Mineralogical Press, Danbury, Connecticut: 192-201. |
| ⓘ Molybdenite Formula: MoS2 Habit: massive aggregates to a few cm Colour: metallic silvery gray Description: Small masses in albite or fine-grained secondary calcite with pyrite, found by Charles and Marcelle Weber. Reference: Januzzi, Ronald E. (1976): Mineral Localities of Connecticut and Southeastern New York State. The Mineralogical Press, Danbury, Connecticut: 192-201.; Former Ronald Januzzi collection. |
| ⓘ Muscovite ? Formula: KAl2(AlSi3O10)(OH)2 Description: Included in a list of minerals with no details. Reference: Januzzi, Ronald E. (1976): Mineral Localities of Connecticut and Southeastern New York State. The Mineralogical Press, Danbury, Connecticut: 192-201. |
| ⓘ Opal ? Formula: SiO2 · nH2O Description: Included in a list of minerals with no details. Reference: Januzzi, Ronald E. (1976): Mineral Localities of Connecticut and Southeastern New York State. The Mineralogical Press, Danbury, Connecticut: 192-201. |
| ⓘ Opal var: Opal-AN ? Formula: SiO2 · nH2O Description: Included in a list of minerals with no details. Reference: Januzzi, Ronald E. (1976): Mineral Localities of Connecticut and Southeastern New York State. The Mineralogical Press, Danbury, Connecticut: 192-201. |
| ⓘ Orthoclase Formula: K(AlSi3O8) Description: Included in a list of minerals with no details, but very likely one of the minerals referred to as "feldspar". Reference: Januzzi, Ronald E. (1976): Mineral Localities of Connecticut and Southeastern New York State. The Mineralogical Press, Danbury, Connecticut: 192-201. |
| ⓘ Phlogopite Formula: KMg3(AlSi3O10)(OH)2 Habit: anhedral Colour: brown Description: Anhedral grains to a few mm in marble with chondrodite. Reference: Januzzi, Ronald E. (1976): Mineral Localities of Connecticut and Southeastern New York State. The Mineralogical Press, Danbury, Connecticut: 192-201; Weber, Marcelle H. and Earle C. Sullivan. (1995): Connecticut Mineral Locality Index. Rocks & Minerals (Connecticut Issue): 70 (6): 397. |
| ⓘ Prehnite ? Formula: Ca2Al2Si3O10(OH)2 Description: Included in a list of minerals with no details. Reference: Januzzi, Ronald E. (1976): Mineral Localities of Connecticut and Southeastern New York State. The Mineralogical Press, Danbury, Connecticut: 192-201. |
| ⓘ Pyrite Formula: FeS2 Habit: anhedral massive Colour: brassy Description: At least one occurrence is with molybdenite in a fine-grained secondary calcite matrix. Reference: Januzzi, Ronald E. (1976): Mineral Localities of Connecticut and Southeastern New York State. The Mineralogical Press, Danbury, Connecticut: 192-201.; Former Ronald Januzzi collection. |
| ⓘ Pyrrhotite ? Formula: Fe7S8 Description: Included in a list of minerals with no details. Reference: Januzzi, Ronald E. (1976): Mineral Localities of Connecticut and Southeastern New York State. The Mineralogical Press, Danbury, Connecticut: 192-201. |
| ⓘ Quartz Formula: SiO2 Description: In the assemblage amphibole, pyroxene, sphene, thorite, zircon, feldspar and quartz. Reference: Januzzi, Ronald E. (1976): Mineral Localities of Connecticut and Southeastern New York State. The Mineralogical Press, Danbury, Connecticut: 192-201. |
| ⓘ Formula: (UO2)CO3 Description: Speculation. Reference: Januzzi, Ronald E. (1976): Mineral Localities of Connecticut and Southeastern New York State. The Mineralogical Press, Danbury, Connecticut: 192-201. |
| ⓘ 'Scapolite' Habit: massive to prismatic Colour: white, pink to violet, light gray Fluorescence: yellow to salmon Description: "Hundreds of pounds of this mineral have been found here since construction began about two years ago. The greater bulk of the scapolite is massive with most of the typical prismatic crystals restricted to cavities in the massive material or to open spaces or seams between rock masses. The color of the scapolite is predominantly white with occasional patches of pink or violet. The scapolite is fluorescent to a degree showing at times a fairly strong yellowish to salmon colored response among the more interesting specimens...The minerals associated with the scapolite include: amphibole, pyroxene, sphene, allanite and biotite." Januzzi (1976). Reference: Januzzi, Ronald E. (1976): Mineral Localities of Connecticut and Southeastern New York State. The Mineralogical Press, Danbury, Connecticut: 192-201.; former Ronald Januzzi collection. |
| ⓘ 'Serpentine Subgroup' ? Formula: D3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn Description: Included in a list of minerals with no details. Reference: Januzzi, Ronald E. (1976): Mineral Localities of Connecticut and Southeastern New York State. The Mineralogical Press, Danbury, Connecticut: 192-201. |
| ⓘ Sphalerite Formula: ZnS Habit: anhedral Colour: gray-brown Description: mass of translucent anhedral grains 11 mm across in marble with phlogopite and chondrodite Reference: Former Ronald Januzzi collection |
| ⓘ Spinel Formula: MgAl2O4 Habit: subhedral octahedral to euhedral Colour: greenish-black, blue-gray Description: "It occurs here as greenish-black subhedral to euhedral crystals in limestone associated with chondrodite and perhaps what may be forsterite. The spinel ranges in size from tiny grain-like crystals to those that on occasion exceed the size of a pea." Januzzi (1976). Reference: Rocks & Minerals (1995) 70:396-409; Januzzi, Ronald E. (1976): Mineral Localities of Connecticut and Southeastern New York State. The Mineralogical Press, Danbury, Connecticut: 192-201. |
| ⓘ 'Stilbite subgroup' ? Description: Included in a list of minerals with no details. Reference: Januzzi, Ronald E. (1976): Mineral Localities of Connecticut and Southeastern New York State. The Mineralogical Press, Danbury, Connecticut: 192-201. |
| ⓘ Talc ? Formula: Mg3Si4O10(OH)2 Description: Included in a list of minerals with no details. Reference: Januzzi, Ronald E. (1976): Mineral Localities of Connecticut and Southeastern New York State. The Mineralogical Press, Danbury, Connecticut: 192-201. |
| ⓘ Thorite Formula: Th(SiO4) Habit: anhedral grains Colour: dark brown to brownish black Description: "as anhedral (without external faces) grains and small masses having a dark brown to brownish black color and vitreous to resinous luster. Because of the anhedral nature of the material I should strongly suspect the thorite to be of the uranothorite variety. The samples sent to Dr. Brian Mason for confirmation clearly demonstrated that they were almost metamict, with a refractive index of about 1.78, and gave good X-ray patterns of thorite after heating for about two hours at 1100 degrees. The thorite occurs here intimately associated with quartz, feldspar, pyroxene, amphibole, sphene, zircon and biotite. Regular and irregular distribution of color areas ranging from orange to yellow material of varying luster occurs in many of the hand specimens containing apparently unaltered thorite." Januzzi (1976). Januzzi (1994) includes a photo. Thorite grains, in coarse-grained albite with minor zircon, reach about 1 cm. Reference: Januzzi, Ronald E. (1976): Mineral Localities of Connecticut and Southeastern New York State. The Mineralogical Press, Danbury, Connecticut: 192-201; Januzzi, Ronald E. (1994), Mineral Data Book - Western Connecticut and Environs. The Mineralogical Press, Danbury, Connecticut; Weber, Marcelle H. and Earle C. Sullivan. (1995): Connecticut Mineral Locality Index. Rocks & Minerals (Connecticut Issue): 70 (6): 397. |
| ⓘ Formula: (Th,Ca2)SiO4 · 3.5H2O Description: Speculation. Reference: Januzzi, Ronald E. (1976): Mineral Localities of Connecticut and Southeastern New York State. The Mineralogical Press, Danbury, Connecticut: 192-201. |
| ⓘ 'Thorogummite' Formula: (Th,U)(SiO4)1-x(OH)4x Habit: psuedomorphs after thorite Colour: yellowish Description: "as small yellowish pulverulent masses having a dull luster, to material of a more compact nature with a waxy luster; it is evidently pseudomorphous after crystals of thorite." Januzzi (1976) Reference: Januzzi, Ronald E. (1976): Mineral Localities of Connecticut and Southeastern New York State. The Mineralogical Press, Danbury, Connecticut: 192-201. |
| ⓘ Titanite Formula: CaTi(SiO4)O Habit: envelope or axe shaped crystals Colour: brown Description: "Fairly large platy masses showing parting are frequently encountered in the waste material from the blasting. The sphene crystals range in size from those a quarter of an inch or less to those one inch or more in length" Januzzi (1976). Present in all assemblages discussed. Januzzi (1994) includes a photo.
Reference: Januzzi, Ronald E. (1976): Mineral Localities of Connecticut and Southeastern New York State. The Mineralogical Press, Danbury, Connecticut: 192-201; Januzzi, Ronald E. (1994), Mineral Data Book - Western Connecticut and Environs. The Mineralogical Press, Danbury, Connecticut. |
| ⓘ 'Tourmaline' ? Formula: A(D3)G6(Si6O18)(BO3)3X3Z Description: Included in a list of minerals with no details. Reference: Januzzi, Ronald E. (1976): Mineral Localities of Connecticut and Southeastern New York State. The Mineralogical Press, Danbury, Connecticut: 192-201. |
| Zircon Formula: Zr(SiO4) Habit: long or short prismatic terminated at either end by a simple pyramid Colour: dark brown Fluorescence: yellow Description: "Dark brown euhedral crystals, some in excess of one inch in length, were found on the western side of the intersection of Hayestown Avenue, North Street and Padanarum Road in Danbury. The typical habit is either long or short prismatic terminated at either end by a simple pyramid" Januzzi (1994), which includes a photo. Associated with quartz, feldspar, pyroxene, amphibole, sphene, thorite and biotite. Reference: Januzzi, Ronald E. (1976): Mineral Localities of Connecticut and Southeastern New York State. The Mineralogical Press, Danbury, Connecticut: 192-201; Januzzi, Ronald E. (1994), Mineral Data Book - Western Connecticut and Environs. The Mineralogical Press, Danbury, Connecticut. |
| ⓘ Zircon var: Cyrtolite ? Formula: Zr[(SiO4),(OH)4] Description: Included in a list of minerals without details. Reference: Januzzi, Ronald E. (1976): Mineral Localities of Connecticut and Southeastern New York State. The Mineralogical Press, Danbury, Connecticut: 192-201. |
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| ⓘ | Graphite | 1.CB.05a | C |
| Group 2 - Sulphides and Sulfosalts | |||
| ⓘ | Chalcopyrite ? | 2.CB.10a | CuFeS2 |
| ⓘ | Molybdenite | 2.EA.30 | MoS2 |
| ⓘ | Pyrite | 2.EB.05a | FeS2 |
| ⓘ | Pyrrhotite ? | 2.CC.10 | Fe7S8 |
| ⓘ | Sphalerite | 2.CB.05a | ZnS |
| Group 3 - Halides | |||
| ⓘ | Fluorite ? | 3.AB.25 | CaF2 |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Goethite ? | 4.00. | α-Fe3+O(OH) |
| ⓘ | Hematite ? | 4.CB.05 | Fe2O3 |
| ⓘ | Ilmenite ? | 4.CB.05 | Fe2+TiO3 |
| ⓘ | Magnetite ? | 4.BB.05 | Fe2+Fe3+2O4 |
| ⓘ | Opal ? | 4.DA.10 | SiO2 · nH2O |
| ⓘ | var: Opal-AN ? | 4.DA.10 | SiO2 · nH2O |
| ⓘ | Quartz | 4.DA.05 | SiO2 |
| ⓘ | Spinel | 4.BB.05 | MgAl2O4 |
| Group 5 - Nitrates and Carbonates | |||
| ⓘ | Aragonite ? | 5.AB.15 | CaCO3 |
| ⓘ | Calcite | 5.AB.05 | CaCO3 |
| ⓘ | Dolomite ? | 5.AB.10 | CaMg(CO3)2 |
| ⓘ | Rutherfordine ? | 5.EB.05 | (UO2)CO3 |
| Group 8 - Phosphates, Arsenates and Vanadates | |||
| ⓘ | Fluorapatite ? | 8.BN.05 | Ca5(PO4)3F |
| Group 9 - Silicates | |||
| ⓘ | Actinolite | 9.DE.10 | ☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2 |
| ⓘ | Albite | 9.FA.35 | Na(AlSi3O8) |
| ⓘ | Almandine ? | 9.AD.25 | Fe2+3Al2(SiO4)3 |
| ⓘ | Augite | 9.DA.15 | (CaxMgyFez)(Mgy1Fez1)Si2O6 |
| ⓘ | Chondrodite | 9.AF.45 | (Mg,Fe2+)5(SiO4)2(F,OH)2 |
| ⓘ | Danburite ? | 9.FA.65 | CaB2Si2O8 |
| ⓘ | Datolite | 9.AJ.20 | CaB(SiO4)(OH) |
| ⓘ | Diopside | 9.DA.15 | CaMgSi2O6 |
| ⓘ | Dumortierite ? | 9.AJ.10 | (Al,Fe3+)7(SiO4)3(BO3)O3 |
| ⓘ | Epidote ? | 9.BG.05a | {Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH) |
| ⓘ | Forsterite | 9.AC.05 | Mg2SiO4 |
| ⓘ | Laumontite ? | 9.GB.10 | CaAl2Si4O12 · 4H2O |
| ⓘ | Microcline | 9.FA.30 | K(AlSi3O8) |
| ⓘ | Muscovite ? | 9.EC.15 | KAl2(AlSi3O10)(OH)2 |
| ⓘ | Orthoclase | 9.FA.30 | K(AlSi3O8) |
| ⓘ | Phlogopite | 9.EC.20 | KMg3(AlSi3O10)(OH)2 |
| ⓘ | Prehnite ? | 9.DP.20 | Ca2Al2Si3O10(OH)2 |
| ⓘ | Talc ? | 9.EC.05 | Mg3Si4O10(OH)2 |
| ⓘ | Thorite | 9.AD.30 | Th(SiO4) |
| ⓘ | var: Calciothorite ? | 9.AD.30 | (Th,Ca2)SiO4 · 3.5H2O |
| ⓘ | Titanite | 9.AG.15 | CaTi(SiO4)O |
| ⓘ | Zircon | 9.AD.30 | Zr(SiO4) |
| ⓘ | var: Cyrtolite ? | 9.AD.30 | Zr[(SiO4),(OH)4] |
| Unclassified Minerals, Rocks, etc. | |||
| ⓘ | 'Allanite Group' | - | {A12+REE3+}{M3+2M32+}(Si2O7)(SiO4)O(OH) |
| ⓘ | 'Amphibole Supergroup' ? | - | AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2 |
| ⓘ | 'var: Uralite' ? | - | AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2 |
| ⓘ | 'Biotite' | - | K(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2 |
| ⓘ | 'Brewsterite' ? | - | |
| ⓘ | 'Chabazite' ? | - | |
| ⓘ | 'Heulandite subgroup' ? | - | |
| ⓘ | 'Hornblende' | - | |
| ⓘ | 'Limonite' | - | (Fe,O,OH,H2O) |
| ⓘ | 'Scapolite' | - | |
| ⓘ | 'Serpentine Subgroup' ? | - | D3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn |
| ⓘ | 'Stilbite subgroup' ? | - | |
| ⓘ | 'Thorogummite' | - | (Th,U)(SiO4)1-x(OH)4x |
| ⓘ | 'Tourmaline' ? | - | A(D3)G6(Si6O18)(BO3)3X3Z |
List of minerals arranged by Dana 8th Edition classification
| Group 1 - NATIVE ELEMENTS AND ALLOYS | |||
|---|---|---|---|
| Semi-metals and non-metals | |||
| ⓘ | Graphite | 1.3.6.2 | C |
| Group 2 - SULFIDES | |||
| AmXp, with m:p = 1:1 | |||
| ⓘ | Pyrrhotite ? | 2.8.10.1 | Fe7S8 |
| ⓘ | Sphalerite | 2.8.2.1 | ZnS |
| AmBnXp, with (m+n):p = 1:1 | |||
| ⓘ | Chalcopyrite ? | 2.9.1.1 | CuFeS2 |
| AmBnXp, with (m+n):p = 1:2 | |||
| ⓘ | Molybdenite | 2.12.10.1 | MoS2 |
| ⓘ | Pyrite | 2.12.1.1 | FeS2 |
| Group 4 - SIMPLE OXIDES | |||
| A2X3 | |||
| ⓘ | Hematite ? | 4.3.1.2 | Fe2O3 |
| ⓘ | Ilmenite ? | 4.3.5.1 | Fe2+TiO3 |
| Group 6 - HYDROXIDES AND OXIDES CONTAINING HYDROXYL | |||
| XO(OH) | |||
| ⓘ | Goethite ? | 6.1.1.2 | α-Fe3+O(OH) |
| Group 7 - MULTIPLE OXIDES | |||
| AB2X4 | |||
| ⓘ | Magnetite ? | 7.2.2.3 | Fe2+Fe3+2O4 |
| ⓘ | Spinel | 7.2.1.1 | MgAl2O4 |
| Group 9 - NORMAL HALIDES | |||
| AX2 | |||
| ⓘ | Fluorite ? | 9.2.1.1 | CaF2 |
| Group 14 - ANHYDROUS NORMAL CARBONATES | |||
| A(XO3) | |||
| ⓘ | Calcite | 14.1.1.1 | CaCO3 |
| ⓘ | Rutherfordine ? | 14.1.4.1 | (UO2)CO3 |
| AB(XO3)2 | |||
| ⓘ | Dolomite ? | 14.2.1.1 | CaMg(CO3)2 |
| Group 41 - ANHYDROUS PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN | |||
| A5(XO4)3Zq | |||
| ⓘ | Fluorapatite ? | 41.8.1.1 | Ca5(PO4)3F |
| Group 51 - NESOSILICATES Insular SiO4 Groups Only | |||
| Insular SiO4 Groups Only with all cations in octahedral [6] coordination | |||
| ⓘ | Forsterite | 51.3.1.2 | Mg2SiO4 |
| Insular SiO4 Groups Only with cations in [6] and >[6] coordination | |||
| ⓘ | Almandine ? | 51.4.3a.2 | Fe2+3Al2(SiO4)3 |
| Insular SiO4 Groups Only with cations in >[6] coordination | |||
| ⓘ | Thorite | 51.5.2.3 | Th(SiO4) |
| ⓘ | 'Thorogummite' | 51.5.2.5 | (Th,U)(SiO4)1-x(OH)4x |
| ⓘ | Zircon | 51.5.2.1 | Zr(SiO4) |
| Group 52 - NESOSILICATES Insular SiO4 Groups and O,OH,F,H2O | |||
| Insular SiO4 Groups and O, OH, F, and H2O with cations in [6] coordination only | |||
| ⓘ | Chondrodite | 52.3.2b.2 | (Mg,Fe2+)5(SiO4)2(F,OH)2 |
| Insular SiO4 Groups and O, OH, F, and H2O with cations in [6] and/or >[6] coordination | |||
| ⓘ | Titanite | 52.4.3.1 | CaTi(SiO4)O |
| Group 54 - NESOSILICATES Borosilicates and Some Beryllosilicates | |||
| Borosilicates and Some Beryllosilicates with (BO3) | |||
| ⓘ | Dumortierite ? | 54.1.2.1 | (Al,Fe3+)7(SiO4)3(BO3)O3 |
| Borosilicates and Some Beryllosilicates with B in [4] coordination | |||
| ⓘ | Datolite | 54.2.1a.1 | CaB(SiO4)(OH) |
| Group 56 - SOROSILICATES Si2O7 Groups, With Additional O, OH, F and H2O | |||
| Si2O7 Groups and O, OH, F, and H2O with[Si2O7] with borate groups | |||
| ⓘ | Danburite ? | 56.3.1.1 | CaB2Si2O8 |
| Group 58 - SOROSILICATES Insular, Mixed, Single, and Larger Tetrahedral Groups | |||
| Insular, Mixed, Single, and Larger Tetrahedral Groups with cations in [6] and higher coordination; single and double groups (n = 1, 2) | |||
| ⓘ | Epidote ? | 58.2.1a.7 | {Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH) |
| Group 65 - INOSILICATES Single-Width,Unbranched Chains,(W=1) | |||
| Single-Width Unbranched Chains, W=1 with chains P=2 | |||
| ⓘ | Augite | 65.1.3a.3 | (CaxMgyFez)(Mgy1Fez1)Si2O6 |
| ⓘ | Diopside | 65.1.3a.1 | CaMgSi2O6 |
| Group 71 - PHYLLOSILICATES Sheets of Six-Membered Rings | |||
| Sheets of 6-membered rings with 2:1 layers | |||
| ⓘ | Muscovite ? | 71.2.2a.1 | KAl2(AlSi3O10)(OH)2 |
| ⓘ | Phlogopite | 71.2.2b.1 | KMg3(AlSi3O10)(OH)2 |
| ⓘ | Talc ? | 71.2.1.3 | Mg3Si4O10(OH)2 |
| Group 72 - PHYLLOSILICATES Two-Dimensional Infinite Sheets with Other Than Six-Membered Rings | |||
| Two-Dimensional Infinite Sheets with Other Than Six-Membered Rings with 4-membered rings | |||
| ⓘ | Prehnite ? | 72.1.3.1 | Ca2Al2Si3O10(OH)2 |
| Group 75 - TECTOSILICATES Si Tetrahedral Frameworks | |||
| Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si | |||
| ⓘ | Quartz | 75.1.3.1 | SiO2 |
| Si Tetrahedral Frameworks - SiO2 with H2O and organics | |||
| ⓘ | Opal ? | 75.2.1.1 | SiO2 · nH2O |
| Group 76 - TECTOSILICATES Al-Si Framework | |||
| Al-Si Framework with Al-Si frameworks | |||
| ⓘ | Albite | 76.1.3.1 | Na(AlSi3O8) |
| ⓘ | Microcline | 76.1.1.5 | K(AlSi3O8) |
| ⓘ | Orthoclase | 76.1.1.1 | K(AlSi3O8) |
| Group 77 - TECTOSILICATES Zeolites | |||
| Zeolite group - True zeolites | |||
| ⓘ | 'Brewsterite' ? | 77.1.7.1 | |
| ⓘ | Laumontite ? | 77.1.1.4 | CaAl2Si4O12 · 4H2O |
| Unclassified Minerals, Mixtures, etc. | |||
| ⓘ | Actinolite | - | ☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2 |
| ⓘ | 'Allanite Group' | - | {A12+REE3+}{M3+2M32+}(Si2O7)(SiO4)O(OH) |
| ⓘ | 'Amphibole Supergroup' ? | - | AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2 |
| ⓘ | 'var: Uralite' ? | - | AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2 |
| ⓘ | Aragonite ? | - | CaCO3 |
| ⓘ | 'Biotite' | - | K(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2 |
| ⓘ | 'Chabazite' ? | - | |
| ⓘ | 'Heulandite subgroup' ? | - | |
| ⓘ | 'Hornblende' | - | |
| ⓘ | 'Limonite' | - | (Fe,O,OH,H2O) |
| ⓘ | Opal var: Opal-AN ? | - | SiO2 · nH2O |
| ⓘ | 'Scapolite' | - | |
| ⓘ | 'Serpentine Subgroup' ? | - | D3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn |
| ⓘ | 'Stilbite subgroup' ? | - | |
| ⓘ | Thorite var: Calciothorite ? | - | (Th,Ca2)SiO4 · 3.5H2O |
| ⓘ | 'Tourmaline' ? | - | A(D3)G6(Si6O18)(BO3)3X3Z |
| ⓘ | Zircon var: Cyrtolite ? | - | Zr[(SiO4),(OH)4] |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Allanite Group | {A12+REE3+}{M23+M32+}(Si2O7)(SiO4)O(OH) |
| H | ⓘ Limonite | (Fe,O,OH,H2O) |
| H | ⓘ Actinolite | ☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2 |
| H | ⓘ Thorogummite | (Th,U)(SiO4)1-x(OH)4x |
| H | ⓘ Phlogopite | KMg3(AlSi3O10)(OH)2 |
| H | ⓘ Datolite | CaB(SiO4)(OH) |
| H | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2 |
| H | ⓘ Goethite | α-Fe3+O(OH) |
| H | ⓘ Zircon (var: Cyrtolite) | Zr[(SiO4),(OH)4] |
| H | ⓘ Epidote | {Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH) |
| H | ⓘ Laumontite | CaAl2Si4O12 · 4H2O |
| H | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| H | ⓘ Opal (var: Opal-AN) | SiO2 · nH2O |
| H | ⓘ Prehnite | Ca2Al2Si3O10(OH)2 |
| H | ⓘ Serpentine Subgroup | D3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn |
| H | ⓘ Amphibole Supergroup (var: Uralite) | AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2 |
| H | ⓘ Talc | Mg3Si4O10(OH)2 |
| H | ⓘ Opal | SiO2 · nH2O |
| H | ⓘ Amphibole Supergroup | AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2 |
| H | ⓘ Thorite (var: Calciothorite) | (Th,Ca2)SiO4 · 3.5H2O |
| B | Boron | |
| B | ⓘ Datolite | CaB(SiO4)(OH) |
| B | ⓘ Tourmaline | A(D3)G6(Si6O18)(BO3)3X3Z |
| B | ⓘ Dumortierite | (Al,Fe3+)7(SiO4)3(BO3)O3 |
| B | ⓘ Danburite | CaB2Si2O8 |
| C | Carbon | |
| C | ⓘ Graphite | C |
| C | ⓘ Calcite | CaCO3 |
| C | ⓘ Aragonite | CaCO3 |
| C | ⓘ Dolomite | CaMg(CO3)2 |
| C | ⓘ Rutherfordine | (UO2)CO3 |
| O | Oxygen | |
| O | ⓘ Zircon | Zr(SiO4) |
| O | ⓘ Allanite Group | {A12+REE3+}{M23+M32+}(Si2O7)(SiO4)O(OH) |
| O | ⓘ Chondrodite | (Mg,Fe2+)5(SiO4)2(F,OH)2 |
| O | ⓘ Thorite | Th(SiO4) |
| O | ⓘ Limonite | (Fe,O,OH,H2O) |
| O | ⓘ Actinolite | ☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2 |
| O | ⓘ Forsterite | Mg2SiO4 |
| O | ⓘ Microcline | K(AlSi3O8) |
| O | ⓘ Orthoclase | K(AlSi3O8) |
| O | ⓘ Augite | (CaxMgyFez)(Mgy1Fez1)Si2O6 |
| O | ⓘ Titanite | CaTi(SiO4)O |
| O | ⓘ Thorogummite | (Th,U)(SiO4)1-x(OH)4x |
| O | ⓘ Phlogopite | KMg3(AlSi3O10)(OH)2 |
| O | ⓘ Spinel | MgAl2O4 |
| O | ⓘ Datolite | CaB(SiO4)(OH) |
| O | ⓘ Calcite | CaCO3 |
| O | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2 |
| O | ⓘ Diopside | CaMgSi2O6 |
| O | ⓘ Quartz | SiO2 |
| O | ⓘ Albite | Na(AlSi3O8) |
| O | ⓘ Goethite | α-Fe3+O(OH) |
| O | ⓘ Hematite | Fe2O3 |
| O | ⓘ Ilmenite | Fe2+TiO3 |
| O | ⓘ Magnetite | Fe2+Fe23+O4 |
| O | ⓘ Aragonite | CaCO3 |
| O | ⓘ Dolomite | CaMg(CO3)2 |
| O | ⓘ Fluorapatite | Ca5(PO4)3F |
| O | ⓘ Almandine | Fe32+Al2(SiO4)3 |
| O | ⓘ Zircon (var: Cyrtolite) | Zr[(SiO4),(OH)4] |
| O | ⓘ Epidote | {Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH) |
| O | ⓘ Laumontite | CaAl2Si4O12 · 4H2O |
| O | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| O | ⓘ Opal (var: Opal-AN) | SiO2 · nH2O |
| O | ⓘ Prehnite | Ca2Al2Si3O10(OH)2 |
| O | ⓘ Tourmaline | A(D3)G6(Si6O18)(BO3)3X3Z |
| O | ⓘ Serpentine Subgroup | D3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn |
| O | ⓘ Amphibole Supergroup (var: Uralite) | AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2 |
| O | ⓘ Talc | Mg3Si4O10(OH)2 |
| O | ⓘ Opal | SiO2 · nH2O |
| O | ⓘ Amphibole Supergroup | AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2 |
| O | ⓘ Dumortierite | (Al,Fe3+)7(SiO4)3(BO3)O3 |
| O | ⓘ Rutherfordine | (UO2)CO3 |
| O | ⓘ Thorite (var: Calciothorite) | (Th,Ca2)SiO4 · 3.5H2O |
| O | ⓘ Danburite | CaB2Si2O8 |
| F | Fluorine | |
| F | ⓘ Chondrodite | (Mg,Fe2+)5(SiO4)2(F,OH)2 |
| F | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2 |
| F | ⓘ Fluorite | CaF2 |
| F | ⓘ Fluorapatite | Ca5(PO4)3F |
| F | ⓘ Amphibole Supergroup (var: Uralite) | AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2 |
| F | ⓘ Amphibole Supergroup | AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2 |
| Na | Sodium | |
| Na | ⓘ Albite | Na(AlSi3O8) |
| Mg | Magnesium | |
| Mg | ⓘ Chondrodite | (Mg,Fe2+)5(SiO4)2(F,OH)2 |
| Mg | ⓘ Actinolite | ☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2 |
| Mg | ⓘ Forsterite | Mg2SiO4 |
| Mg | ⓘ Augite | (CaxMgyFez)(Mgy1Fez1)Si2O6 |
| Mg | ⓘ Phlogopite | KMg3(AlSi3O10)(OH)2 |
| Mg | ⓘ Spinel | MgAl2O4 |
| Mg | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2 |
| Mg | ⓘ Diopside | CaMgSi2O6 |
| Mg | ⓘ Dolomite | CaMg(CO3)2 |
| Mg | ⓘ Serpentine Subgroup | D3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn |
| Mg | ⓘ Talc | Mg3Si4O10(OH)2 |
| Al | Aluminium | |
| Al | ⓘ Microcline | K(AlSi3O8) |
| Al | ⓘ Orthoclase | K(AlSi3O8) |
| Al | ⓘ Phlogopite | KMg3(AlSi3O10)(OH)2 |
| Al | ⓘ Spinel | MgAl2O4 |
| Al | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2 |
| Al | ⓘ Albite | Na(AlSi3O8) |
| Al | ⓘ Almandine | Fe32+Al2(SiO4)3 |
| Al | ⓘ Epidote | {Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH) |
| Al | ⓘ Laumontite | CaAl2Si4O12 · 4H2O |
| Al | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| Al | ⓘ Prehnite | Ca2Al2Si3O10(OH)2 |
| Al | ⓘ Serpentine Subgroup | D3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn |
| Al | ⓘ Amphibole Supergroup (var: Uralite) | AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2 |
| Al | ⓘ Amphibole Supergroup | AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2 |
| Al | ⓘ Dumortierite | (Al,Fe3+)7(SiO4)3(BO3)O3 |
| Si | Silicon | |
| Si | ⓘ Zircon | Zr(SiO4) |
| Si | ⓘ Allanite Group | {A12+REE3+}{M23+M32+}(Si2O7)(SiO4)O(OH) |
| Si | ⓘ Chondrodite | (Mg,Fe2+)5(SiO4)2(F,OH)2 |
| Si | ⓘ Thorite | Th(SiO4) |
| Si | ⓘ Actinolite | ☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2 |
| Si | ⓘ Forsterite | Mg2SiO4 |
| Si | ⓘ Microcline | K(AlSi3O8) |
| Si | ⓘ Orthoclase | K(AlSi3O8) |
| Si | ⓘ Augite | (CaxMgyFez)(Mgy1Fez1)Si2O6 |
| Si | ⓘ Titanite | CaTi(SiO4)O |
| Si | ⓘ Thorogummite | (Th,U)(SiO4)1-x(OH)4x |
| Si | ⓘ Phlogopite | KMg3(AlSi3O10)(OH)2 |
| Si | ⓘ Datolite | CaB(SiO4)(OH) |
| Si | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2 |
| Si | ⓘ Diopside | CaMgSi2O6 |
| Si | ⓘ Quartz | SiO2 |
| Si | ⓘ Albite | Na(AlSi3O8) |
| Si | ⓘ Almandine | Fe32+Al2(SiO4)3 |
| Si | ⓘ Zircon (var: Cyrtolite) | Zr[(SiO4),(OH)4] |
| Si | ⓘ Epidote | {Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH) |
| Si | ⓘ Laumontite | CaAl2Si4O12 · 4H2O |
| Si | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| Si | ⓘ Opal (var: Opal-AN) | SiO2 · nH2O |
| Si | ⓘ Prehnite | Ca2Al2Si3O10(OH)2 |
| Si | ⓘ Tourmaline | A(D3)G6(Si6O18)(BO3)3X3Z |
| Si | ⓘ Serpentine Subgroup | D3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn |
| Si | ⓘ Amphibole Supergroup (var: Uralite) | AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2 |
| Si | ⓘ Talc | Mg3Si4O10(OH)2 |
| Si | ⓘ Opal | SiO2 · nH2O |
| Si | ⓘ Amphibole Supergroup | AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2 |
| Si | ⓘ Dumortierite | (Al,Fe3+)7(SiO4)3(BO3)O3 |
| Si | ⓘ Thorite (var: Calciothorite) | (Th,Ca2)SiO4 · 3.5H2O |
| Si | ⓘ Danburite | CaB2Si2O8 |
| P | Phosphorus | |
| P | ⓘ Fluorapatite | Ca5(PO4)3F |
| S | Sulfur | |
| S | ⓘ Molybdenite | MoS2 |
| S | ⓘ Pyrite | FeS2 |
| S | ⓘ Sphalerite | ZnS |
| S | ⓘ Chalcopyrite | CuFeS2 |
| S | ⓘ Pyrrhotite | Fe7S8 |
| Cl | Chlorine | |
| Cl | ⓘ Amphibole Supergroup (var: Uralite) | AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2 |
| Cl | ⓘ Amphibole Supergroup | AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2 |
| K | Potassium | |
| K | ⓘ Microcline | K(AlSi3O8) |
| K | ⓘ Orthoclase | K(AlSi3O8) |
| K | ⓘ Phlogopite | KMg3(AlSi3O10)(OH)2 |
| K | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2 |
| K | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| Ca | Calcium | |
| Ca | ⓘ Actinolite | ☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2 |
| Ca | ⓘ Augite | (CaxMgyFez)(Mgy1Fez1)Si2O6 |
| Ca | ⓘ Titanite | CaTi(SiO4)O |
| Ca | ⓘ Datolite | CaB(SiO4)(OH) |
| Ca | ⓘ Calcite | CaCO3 |
| Ca | ⓘ Diopside | CaMgSi2O6 |
| Ca | ⓘ Fluorite | CaF2 |
| Ca | ⓘ Aragonite | CaCO3 |
| Ca | ⓘ Dolomite | CaMg(CO3)2 |
| Ca | ⓘ Fluorapatite | Ca5(PO4)3F |
| Ca | ⓘ Epidote | {Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH) |
| Ca | ⓘ Laumontite | CaAl2Si4O12 · 4H2O |
| Ca | ⓘ Prehnite | Ca2Al2Si3O10(OH)2 |
| Ca | ⓘ Thorite (var: Calciothorite) | (Th,Ca2)SiO4 · 3.5H2O |
| Ca | ⓘ Danburite | CaB2Si2O8 |
| Ti | Titanium | |
| Ti | ⓘ Titanite | CaTi(SiO4)O |
| Ti | ⓘ Ilmenite | Fe2+TiO3 |
| Ti | ⓘ Amphibole Supergroup (var: Uralite) | AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2 |
| Ti | ⓘ Amphibole Supergroup | AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2 |
| Mn | Manganese | |
| Mn | ⓘ Serpentine Subgroup | D3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn |
| Fe | Iron | |
| Fe | ⓘ Limonite | (Fe,O,OH,H2O) |
| Fe | ⓘ Actinolite | ☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2 |
| Fe | ⓘ Augite | (CaxMgyFez)(Mgy1Fez1)Si2O6 |
| Fe | ⓘ Pyrite | FeS2 |
| Fe | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2 |
| Fe | ⓘ Chalcopyrite | CuFeS2 |
| Fe | ⓘ Pyrrhotite | Fe7S8 |
| Fe | ⓘ Goethite | α-Fe3+O(OH) |
| Fe | ⓘ Hematite | Fe2O3 |
| Fe | ⓘ Ilmenite | Fe2+TiO3 |
| Fe | ⓘ Magnetite | Fe2+Fe23+O4 |
| Fe | ⓘ Almandine | Fe32+Al2(SiO4)3 |
| Fe | ⓘ Epidote | {Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH) |
| Fe | ⓘ Serpentine Subgroup | D3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn |
| Ni | Nickel | |
| Ni | ⓘ Serpentine Subgroup | D3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn |
| Cu | Copper | |
| Cu | ⓘ Chalcopyrite | CuFeS2 |
| Zn | Zinc | |
| Zn | ⓘ Sphalerite | ZnS |
| Zn | ⓘ Serpentine Subgroup | D3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn |
| Zr | Zirconium | |
| Zr | ⓘ Zircon | Zr(SiO4) |
| Zr | ⓘ Zircon (var: Cyrtolite) | Zr[(SiO4),(OH)4] |
| Mo | Molybdenum | |
| Mo | ⓘ Molybdenite | MoS2 |
| Th | Thorium | |
| Th | ⓘ Thorite | Th(SiO4) |
| Th | ⓘ Thorogummite | (Th,U)(SiO4)1-x(OH)4x |
| Th | ⓘ Thorite (var: Calciothorite) | (Th,Ca2)SiO4 · 3.5H2O |
| U | Uranium | |
| U | ⓘ Thorogummite | (Th,U)(SiO4)1-x(OH)4x |
| U | ⓘ Rutherfordine | (UO2)CO3 |
References
Sort by
Year (asc) Year (desc) Author (A-Z) Author (Z-A)Januzzi, Ronald E. (1965), The Danburite Locality at Danbury, Connecticut, 1837-1965. Rocks and Minerals: 40(6): 405-410.
Januzzi, Ronald E. (1976): Mineral Localities of Connecticut and Southeastern New York State. The Mineralogical Press, Danbury, Connecticut: 192-201.
Januzzi, Ronald E. (1994), Mineral Data Book - Western Connecticut and Environs. The Mineralogical Press, Danbury, Connecticut.
Weber, Marcelle H. and Earle C. Sullivan. (1995): Connecticut Mineral Locality Index. Rocks & Minerals (Connecticut Issue): 70 (6): 397.
Other Regions, Features and Areas containg this locality
North America PlateTectonic Plate
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