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Rocca Castellaccio (Rocca di Castellaccio), Ciappanico, Torre di Santa Maria, Malenco Valley, Valtellina, Sondrio Province, Lombardy, Italyi
Regional Level Types
Rocca Castellaccio (Rocca di Castellaccio)- not defined -
Ciappanico- not defined -
Torre di Santa Maria- not defined -
Malenco ValleyValley
Valtellina- not defined -
Sondrio ProvinceProvince
LombardyRegion
ItalyCountry

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Key
Latitude & Longitude (WGS84):
46° 14' 25'' North , 9° 50' 22'' East
Latitude & Longitude (decimal):
Köppen climate type:
Nearest Settlements:
PlacePopulationDistance
Torre di Santa Maria396 (2014)1.2km
Santa Elisabetta123 (2014)2.8km
Chiesa in Valmalenco2,203 (2014)3.1km
Caspoggio1,375 (2014)3.2km
Vassalini247 (2014)3.6km
Name(s) in local language(s):
Rocca Castellaccio (Rocca di Castellaccio), Ciappanico, Torre di Santa Maria, Valmalenco (Val Malenco), Valtellina, Sondrio, Lombardia, Italia


Minerals occur in different formation environments inside serpentinite: carbonate-rich fissures, rodingite lenses rich in Ti-bearing minerals, titanian hydroxylclinohumite-forsterite-magnetite-calcite veins, perovskite-magnetite-diopside-calcite veins, and asbestos-andradite-magnetite fissures.

In soil-cemented, cracked serpentinite blocks a large deposit, rich in Mg carbonates (mainly artinite) was discovered in 1954 above Ciappanico, at an elevation of about 1250 m, in the easternmost gully of the southern slope of Rocca di Castellaccio. Artinite appears as tufts or spherules of white acicular crystals, up to 1 cm in length, in association with hydromagnesite, coalingite, and asbestos. Aragonite is a common mineral in this area (Gramaccioli, 1962; Bedognè, 1970 and 1979; De Michele, 1974); nakauriite is a rare mineral in this paragenesis (Bedognè et al. 1993); blue antigorite is an oddity of this occurrence (Bedognè et al., 2006).
Rodingite lenses, embedded in chlorite schist layers, crop out on the southern slope at an elevation of about 1400 m. Fissures in rodingite are filled with spathic calcite and lined with nice crystals of various minerals: perovskite, the most known mineral for this locality, forms yellow to brown to black crystals with pseudocubic or complex habit; titanium-rich hydrougrandite (melanite) forms ebony-black rhombohedral crystals, up to 15 mm in size; andradite appears as brown octahedra; vesuvianite rarely crystallises as coffee-brown prisms with flat or sharp termination; diopside mainly appears as white to grey ribbon-like individuals and rarely as colourless prismatic crystals; titanite forms pinkish, yellow-brown or purplish crystals; ilmenite appears as tabular to lamellar crystals; magnetite crystals show octahedral, rhombododecahedral or complex habit; clinochlore appears as dark green tabular or prismatic individuals and their aggregates. Among the accessory minerals, besides apatite, copper sulphides and their alteration products, interesting is the presence of two zirconium minerals: zircon and calzirtite. Zircon forms white or yellowish prismatic crystals; calzirtite appears as stocky tetragonal crystals, up to 5 mm, often twinned, varying in colour from hazelnut-brown to honey-yellow to colourless (Boscardin and Preite, 1982; Preite, 1986). It is interesting to remark that the first calzirtite crystals were found here in 1956, but this mineral was correctly identified only in 1982. A study on its crystal structure has been performed by Callegari et al. (1997). Furthermore, a find of lamellar gold on diopside has been recorded from this occurrence (Bedognè et al., 1993).
Crystals of titanian hydroxylclinohumite, forsterite, and magnetite are found in calcite veins in serpentinite cropping out at "Ruinaa del Castelaasc", near the Campioeu stable, on the southern slope (Sigismund, 1949b). Also from the southern slope, large honey-yellow or brown-black crystals of perovskite in association with magnetite and diopside have been found in calcite veins (Bedognè et al. 1993). Small yellow or greenish crystals of andradite in association with asbestos and sometimes with magnetite are known from the easternmost talus of the southern slope (Bedognè, 1970).

Note on "brugnatellite":
analyses performed on pinkish-brown plates, found in association with artinite and presumably considered as "brugnatellite" (Gramaccioli, 1975, and other authors), have shown that this mineral is actually coalingite (Bedognè et al., 1993).

Note on “Ti-bearing clinohumite, titanclinohumite”:
according to the analyses performed, this mineral in the Malenco valley serpentinite is practically fluorine-free (Trommsdorff and Evans, 1980). Therefore, after the institution of the new species hydroxylclinohumite in 1999, all records of “titanclinohumite” in the antecedent literature and specimens preserved in public and private collections consequently labelled are now Ti-bearing hydroxylclinohumite (Bedognè et al., 2006)

Provided geographical coordinates refer to the base of the Gully where Artinite bearing outcrops were found.

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


23 valid minerals.

Detailed Mineral List:

Andradite
Formula: Ca3Fe3+2(SiO4)3
Reference: Bedognè, F., Montrasio, A., Sciesa, E. (1993) I minerali della provincia di Sondrio: Valmalenco. Bettini, Sondrio, 275 pp. AA. VV., 1996. Collezionare minerali. Hobby & Work.
Antigorite
Formula: Mg3(Si2O5)(OH)4
Reference: Bedognè, F., Montrasio, A., Sciesa, E. (2006) I minerali della media-alta Valtellina, delle Orobie valtellinesi e della Val Poschiavo. Aggiornamenti sulle altre località della provincia di Sondrio. Bettini, Sondrio, 255 pp.
'Apatite'
Formula: Ca5(PO4)3(Cl/F/OH)
Reference: Bedognè, F., Montrasio, A., Sciesa, E. (1993) I minerali della provincia di Sondrio: Valmalenco. Bettini, Sondrio, 275 pp. AA. VV., 1996. Collezionare minerali. Hobby & Work
Aragonite
Formula: CaCO3
Reference: Bedognè, F. (1970) Rocca di Castellaccio. In: Boscardin, M., De Michele, V., Scaini, G. Itinerari mineralogici della Lombardia. Ed. Museo Civ. St. Nat. e Soc. It. Sci. Nat., Milano, 86-88. Bedognè, F., Montrasio, A., Sciesa, E. (1993) I minerali della provincia di Sondrio: Valmalenco. Bettini, Sondrio, 275 pp.
Artinite
Formula: Mg2(CO3)(OH)2 · 3H2O
Reference: Bedognè, F. (1970) Rocca di Castellaccio. In: Boscardin, M., De Michele, V., Scaini, G. Itinerari mineralogici della Lombardia. Ed. Museo Civ. St. Nat. e Soc. It. Sci. Nat., Milano, 86-88. Bedognè, F., Montrasio, A., Sciesa, E. (1993) I minerali della provincia di Sondrio: Valmalenco. Bettini, Sondrio, 275 pp.
'Asbestos'
Reference: Bedognè, F., Montrasio, A., Sciesa, E. (1993) I minerali della provincia di Sondrio: Valmalenco. Bettini, Sondrio, 275 pp.
Brugnatellite ?
Formula: Mg6Fe3+(CO3)(OH)13 · 4H2O
Reference: Gramaccioli, C.M. (1975) Minerali alpini e prealpini. Istituto Italiano Edizioni Atlas, Bergamo, 2 vol., 472 pp. AA. VV., 1996. Collezionare minerali. Hobby & Work
Calcite
Formula: CaCO3
Reference: Sigismund, P. (1949) Titanclinohumite, olivine e ripidolite di Valmalenco. Atti Soc. Ital. Sci. Nat., 88, 145-171. Bedognè, F., Montrasio, A., Sciesa, E. (1993) I minerali della provincia di Sondrio: Valmalenco. Bettini, Sondrio, 275 pp.
Calzirtite
Formula: CaZr3TiO9
Reference: Boscardin, M., and Preite, D. (1982) Calzirtit, Milarit und Compreignacit aud den italienischen Zentralalpen. Lapis, 1982/10, 15-16. Preite, D. (1986) Calzirtite di Ciappanico. Riv. Mineral. It., 10, 139. Bedognè, F., Montrasio, A., Sciesa, E. (1993) I minerali della provincia di Sondrio: Valmalenco. Bettini, Sondrio, 275 pp. Callegari, A., Mazzi, F., Ungaretti, L. (1997) The crystal structure of the orthorombic calzirtite from Val Malenco (Italy). N. Jb. Mineral. Mh., 467-480.
'Chlorite Group'
Reference: AA. VV., 1996. Collezionare minerali. Hobby & Work
Chrysocolla
Formula: Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O
Reference: Bedognè, F., Montrasio, A., Sciesa, E. (1993) I minerali della provincia di Sondrio: Valmalenco. Bettini, Sondrio, 275 pp.
Clinochlore
Formula: Mg5Al(AlSi3O10)(OH)8
Reference: Bedognè, F., Montrasio, A., Sciesa, E. (1993) I minerali della provincia di Sondrio: Valmalenco. Bettini, Sondrio, 275 pp.
Clinohumite
Formula: Mg9(SiO4)4F2
Reference: Sigismund, P. (1949) Titanclinohumite, olivine e ripidolite di Valmalenco. Atti Soc. Ital. Sci. Nat., 88, 145-171. Bedognè, F., Montrasio, A., Sciesa, E. (1993) I minerali della provincia di Sondrio: Valmalenco. Bettini, Sondrio, 275 pp.
Clinohumite var: Titanclinohumite
Formula: Mg9(SiO4)4F2
Reference: Sigismund, P. (1949) Titanclinohumite, olivine e ripidolite di Valmalenco. Atti Soc. Ital. Sci. Nat., 88, 145-171. Bedognè, F., Montrasio, A., Sciesa, E. (1993) I minerali della provincia di Sondrio: Valmalenco. Bettini, Sondrio, 275 pp.
Coalingite
Formula: Mg10Fe3+2(OH)24[CO3] · 2H2O
Reference: Bedognè, F., Montrasio, A., Sciesa, E. (1993) I minerali della provincia di Sondrio: Valmalenco. Bettini, Sondrio, 275 pp.
Diopside
Formula: CaMgSi2O6
Reference: Bedognè, F., Montrasio, A., Sciesa, E. (1993) I minerali della provincia di Sondrio: Valmalenco. Bettini, Sondrio, 275 pp. AA. VV., 1996. Collezionare minerali. Hobby & Work
Forsterite
Formula: Mg2SiO4
Reference: Sigismund, P. (1949) Titanclinohumite, olivine e ripidolite di Valmalenco. Atti Soc. Ital. Sci. Nat., 88, 145-171. Bedognè, F., Montrasio, A., Sciesa, E. (1993) I minerali della provincia di Sondrio: Valmalenco. Bettini, Sondrio, 275 pp.
Gold
Formula: Au
Reference: Bedognè, F., Montrasio, A., Sciesa, E. (1993) I minerali della provincia di Sondrio: Valmalenco. Bettini, Sondrio, 275 pp. AA. VV., 1996. Collezionare minerali. Hobby & Work.
Hydromagnesite
Formula: Mg5(CO3)4(OH)2 · 4H2O
Reference: Bedognè, F. (1970) Rocca di Castellaccio. In: Boscardin, M., De Michele, V., Scaini, G. Itinerari mineralogici della Lombardia. Ed. Museo Civ. St. Nat. e Soc. It. Sci. Nat., Milano, 86-88. Bedognè, F., Montrasio, A., Sciesa, E. (1993) I minerali della provincia di Sondrio: Valmalenco. Bettini, Sondrio, 275 pp.
'Hydrougrandite'
Formula: (Ca,Mg,Fe2+)3(Fe3+,Al)2[(OH)4(SiO4)2]
Reference: Bedognè, F., Montrasio, A., Sciesa, E. (1993) I minerali della provincia di Sondrio: Valmalenco. Bettini, Sondrio, 275 pp. AA. VV., 1996. Collezionare minerali. Hobby & Work.
Ilmenite
Formula: Fe2+TiO3
Reference: Bedognè, F., Montrasio, A., Sciesa, E. (1993) I minerali della provincia di Sondrio: Valmalenco. Bettini, Sondrio, 275 pp. AA. VV., 1996. Collezionare minerali. Hobby & Work
Magnetite
Formula: Fe2+Fe3+2O4
Reference: Sigismund, P. (1949) Titanclinohumite, olivine e ripidolite di Valmalenco. Atti Soc. Ital. Sci. Nat., 88, 145-171. Bedognè, F., Montrasio, A., Sciesa, E. (1993) I minerali della provincia di Sondrio: Valmalenco. Bettini, Sondrio, 275 pp.
Malachite
Formula: Cu2(CO3)(OH)2
Reference: Bedognè, F., Montrasio, A., Sciesa, E. (1993) I minerali della provincia di Sondrio: Valmalenco. Bettini, Sondrio, 275 pp.
Nakauriite
Formula: Cu8(SO4)4(CO3)(OH)6 · 48H2O
Reference: Bedognè, F., Montrasio, A., Sciesa, E. (1993) I minerali della provincia di Sondrio: Valmalenco. Bettini, Sondrio, 275 pp. AA. VV., 1996. Collezionare minerali. Hobby & Work
Perovskite
Formula: CaTiO3
Reference: Sigismund, P. (1949a) Perowskite in Val Malenco. Rend. Soc. Mineral. It., 5, 133-133. Bedognè, F., Montrasio, A., Sciesa, E. (1993) I minerali della provincia di Sondrio: Valmalenco. Bettini, Sondrio, 275 pp. AA. VV., 1996. Collezionare minerali. Hobby & Work.
Titanite
Formula: CaTi(SiO4)O
Reference: Bedognè, F., Montrasio, A., Sciesa, E. (1993) I minerali della provincia di Sondrio: Valmalenco. Bettini, Sondrio, 275 pp. AA. VV., 1996. Collezionare minerali. Hobby & Work
Vesuvianite
Formula: Ca19Fe3+Al4(Al6Mg2)(☐4)☐[Si2O7]4[(SiO4)10]O(OH)9
Reference: Bedognè, F., Montrasio, A., Sciesa, E. (1993) I minerali della provincia di Sondrio: Valmalenco. Bettini, Sondrio, 275 pp. AA. VV., 1996. Collezionare minerali. Hobby & Work
Zircon
Formula: Zr(SiO4)
Reference: Bedognè, F., Montrasio, A., Sciesa, E. (1993) I minerali della provincia di Sondrio: Valmalenco. Bettini, Sondrio, 275 pp. AA. VV., 1996. Collezionare minerali. Hobby & Work

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
Gold1.AA.05Au
Group 4 - Oxides and Hydroxides
Calzirtite4.DL.10CaZr3TiO9
Ilmenite4.CB.05Fe2+TiO3
Magnetite4.BB.05Fe2+Fe3+2O4
Perovskite4.CC.30CaTiO3
Group 5 - Nitrates and Carbonates
Aragonite5.AB.15CaCO3
Artinite5.DA.10Mg2(CO3)(OH)2 · 3H2O
Brugnatellite ?5.DA.45Mg6Fe3+(CO3)(OH)13 · 4H2O
Calcite5.AB.05CaCO3
Coalingite5.DA.55Mg10Fe3+2(OH)24[CO3] · 2H2O
Hydromagnesite5.DA.05Mg5(CO3)4(OH)2 · 4H2O
Malachite5.BA.10Cu2(CO3)(OH)2
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
Nakauriite7.DG.30Cu8(SO4)4(CO3)(OH)6 · 48H2O
Group 9 - Silicates
Andradite9.AD.25Ca3Fe3+2(SiO4)3
Antigorite9.ED.15Mg3(Si2O5)(OH)4
Chrysocolla9.ED.20Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O
Clinochlore9.EC.55Mg5Al(AlSi3O10)(OH)8
Clinohumite9.AF.55Mg9(SiO4)4F2
var: Titanclinohumite9.AF.55Mg9(SiO4)4F2
Diopside9.DA.15CaMgSi2O6
Forsterite9.AC.05Mg2SiO4
Titanite9.AG.15CaTi(SiO4)O
Vesuvianite9.BG.35Ca19Fe3+Al4(Al6Mg2)(☐4)☐[Si2O7]4[(SiO4)10]O(OH)9
Zircon9.AD.30Zr(SiO4)
Unclassified Minerals, Rocks, etc.
'Apatite'-Ca5(PO4)3(Cl/F/OH)
'Asbestos'-
'Chlorite Group'-
'Hydrougrandite'-(Ca,Mg,Fe2+)3(Fe3+,Al)2[(OH)4(SiO4)2]

List of minerals arranged by Dana 8th Edition classification

Group 1 - NATIVE ELEMENTS AND ALLOYS
Metals, other than the Platinum Group
Gold1.1.1.1Au
Group 4 - SIMPLE OXIDES
A2X3
Ilmenite4.3.5.1Fe2+TiO3
Perovskite4.3.3.1CaTiO3
Group 7 - MULTIPLE OXIDES
AB2X4
Magnetite7.2.2.3Fe2+Fe3+2O4
Group 8 - MULTIPLE OXIDES CONTAINING NIOBIUM,TANTALUM OR TITANIUM
Miscellaneous
Calzirtite8.7.4.1CaZr3TiO9
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Calcite14.1.1.1CaCO3
Group 16a - ANHYDROUS CARBONATES CONTAINING HYDROXYL OR HALOGEN
Malachite16a.3.1.1Cu2(CO3)(OH)2
Group 16b - HYDRATED CARBONATES CONTAINING HYDROXYL OR HALOGEN
Artinite16b.3.1.1Mg2(CO3)(OH)2 · 3H2O
Brugnatellite ?16b.7.5.1Mg6Fe3+(CO3)(OH)13 · 4H2O
Coalingite16b.7.6.1Mg10Fe3+2(OH)24[CO3] · 2H2O
Hydromagnesite16b.7.1.1Mg5(CO3)4(OH)2 · 4H2O
Group 32 - COMPOUND SULFATES
Hydrated Compound Sulfates containing Hydroxyl or Halogen
Nakauriite32.4.1.1Cu8(SO4)4(CO3)(OH)6 · 48H2O
Group 51 - NESOSILICATES Insular SiO4 Groups Only
Insular SiO4 Groups Only with all cations in octahedral [6] coordination
Forsterite51.3.1.2Mg2SiO4
Insular SiO4 Groups Only with cations in [6] and >[6] coordination
Andradite51.4.3b.1Ca3Fe3+2(SiO4)3
Insular SiO4 Groups Only with cations in >[6] coordination
Zircon51.5.2.1Zr(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
Clinohumite52.3.2d.1Mg9(SiO4)4F2
Insular SiO4 Groups and O, OH, F, and H2O with cations in [6] and/or >[6] coordination
Titanite52.4.3.1CaTi(SiO4)O
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)
Vesuvianite58.2.4.1Ca19Fe3+Al4(Al6Mg2)(☐4)☐[Si2O7]4[(SiO4)10]O(OH)9
Group 65 - INOSILICATES Single-Width,Unbranched Chains,(W=1)
Single-Width Unbranched Chains, W=1 with chains P=2
Diopside65.1.3a.1CaMgSi2O6
Group 71 - PHYLLOSILICATES Sheets of Six-Membered Rings
Sheets of 6-membered rings with 1:1 layers
Antigorite71.1.2a.1Mg3(Si2O5)(OH)4
Sheets of 6-membered rings interlayered 1:1, 2:1, and octahedra
Clinochlore71.4.1.4Mg5Al(AlSi3O10)(OH)8
Group 74 - PHYLLOSILICATES Modulated Layers
Modulated Layers with joined strips
Chrysocolla74.3.2.1Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O
Unclassified Minerals, Mixtures, etc.
'Apatite'-Ca5(PO4)3(Cl/F/OH)
Aragonite-CaCO3
'Asbestos'-
'Chlorite Group'-
Clinohumite
var: Titanclinohumite
-Mg9(SiO4)4F2
'Hydrougrandite'-(Ca,Mg,Fe2+)3(Fe3+,Al)2[(OH)4(SiO4)2]

List of minerals for each chemical element

HHydrogen
H Hydrougrandite(Ca,Mg,Fe2+)3(Fe3+,Al)2[(OH)4(SiO4)2]
H ArtiniteMg2(CO3)(OH)2 · 3H2O
H NakauriiteCu8(SO4)4(CO3)(OH)6 · 48H2O
H VesuvianiteCa19Fe3+Al4(Al6Mg2)(☐4)☐[Si2O7]4[(SiO4)10]O(OH)9
H ApatiteCa5(PO4)3(Cl/F/OH)
H HydromagnesiteMg5(CO3)4(OH)2 · 4H2O
H CoalingiteMg10Fe23+(OH)24[CO3] · 2H2O
H AntigoriteMg3(Si2O5)(OH)4
H ClinochloreMg5Al(AlSi3O10)(OH)8
H ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O
H MalachiteCu2(CO3)(OH)2
H BrugnatelliteMg6Fe3+(CO3)(OH)13 · 4H2O
CCarbon
C ArtiniteMg2(CO3)(OH)2 · 3H2O
C NakauriiteCu8(SO4)4(CO3)(OH)6 · 48H2O
C CalciteCaCO3
C AragoniteCaCO3
C HydromagnesiteMg5(CO3)4(OH)2 · 4H2O
C CoalingiteMg10Fe23+(OH)24[CO3] · 2H2O
C MalachiteCu2(CO3)(OH)2
C BrugnatelliteMg6Fe3+(CO3)(OH)13 · 4H2O
OOxygen
O Hydrougrandite(Ca,Mg,Fe2+)3(Fe3+,Al)2[(OH)4(SiO4)2]
O ArtiniteMg2(CO3)(OH)2 · 3H2O
O CalzirtiteCaZr3TiO9
O PerovskiteCaTiO3
O AndraditeCa3Fe23+(SiO4)3
O NakauriiteCu8(SO4)4(CO3)(OH)6 · 48H2O
O DiopsideCaMgSi2O6
O IlmeniteFe2+TiO3
O MagnetiteFe2+Fe23+O4
O VesuvianiteCa19Fe3+Al4(Al6Mg2)(☐4)☐[Si2O7]4[(SiO4)10]O(OH)9
O TitaniteCaTi(SiO4)O
O ApatiteCa5(PO4)3(Cl/F/OH)
O ZirconZr(SiO4)
O CalciteCaCO3
O ForsteriteMg2SiO4
O Clinohumite (var: Titanclinohumite)Mg9(SiO4)4F2
O AragoniteCaCO3
O HydromagnesiteMg5(CO3)4(OH)2 · 4H2O
O CoalingiteMg10Fe23+(OH)24[CO3] · 2H2O
O AntigoriteMg3(Si2O5)(OH)4
O ClinochloreMg5Al(AlSi3O10)(OH)8
O ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O
O MalachiteCu2(CO3)(OH)2
O ClinohumiteMg9(SiO4)4F2
O BrugnatelliteMg6Fe3+(CO3)(OH)13 · 4H2O
FFluorine
F ApatiteCa5(PO4)3(Cl/F/OH)
F Clinohumite (var: Titanclinohumite)Mg9(SiO4)4F2
F ClinohumiteMg9(SiO4)4F2
MgMagnesium
Mg Hydrougrandite(Ca,Mg,Fe2+)3(Fe3+,Al)2[(OH)4(SiO4)2]
Mg ArtiniteMg2(CO3)(OH)2 · 3H2O
Mg DiopsideCaMgSi2O6
Mg VesuvianiteCa19Fe3+Al4(Al6Mg2)(☐4)☐[Si2O7]4[(SiO4)10]O(OH)9
Mg ForsteriteMg2SiO4
Mg Clinohumite (var: Titanclinohumite)Mg9(SiO4)4F2
Mg HydromagnesiteMg5(CO3)4(OH)2 · 4H2O
Mg CoalingiteMg10Fe23+(OH)24[CO3] · 2H2O
Mg AntigoriteMg3(Si2O5)(OH)4
Mg ClinochloreMg5Al(AlSi3O10)(OH)8
Mg ClinohumiteMg9(SiO4)4F2
Mg BrugnatelliteMg6Fe3+(CO3)(OH)13 · 4H2O
AlAluminium
Al Hydrougrandite(Ca,Mg,Fe2+)3(Fe3+,Al)2[(OH)4(SiO4)2]
Al VesuvianiteCa19Fe3+Al4(Al6Mg2)(☐4)☐[Si2O7]4[(SiO4)10]O(OH)9
Al ClinochloreMg5Al(AlSi3O10)(OH)8
Al ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O
SiSilicon
Si Hydrougrandite(Ca,Mg,Fe2+)3(Fe3+,Al)2[(OH)4(SiO4)2]
Si AndraditeCa3Fe23+(SiO4)3
Si DiopsideCaMgSi2O6
Si VesuvianiteCa19Fe3+Al4(Al6Mg2)(☐4)☐[Si2O7]4[(SiO4)10]O(OH)9
Si TitaniteCaTi(SiO4)O
Si ZirconZr(SiO4)
Si ForsteriteMg2SiO4
Si Clinohumite (var: Titanclinohumite)Mg9(SiO4)4F2
Si AntigoriteMg3(Si2O5)(OH)4
Si ClinochloreMg5Al(AlSi3O10)(OH)8
Si ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O
Si ClinohumiteMg9(SiO4)4F2
PPhosphorus
P ApatiteCa5(PO4)3(Cl/F/OH)
SSulfur
S NakauriiteCu8(SO4)4(CO3)(OH)6 · 48H2O
ClChlorine
Cl ApatiteCa5(PO4)3(Cl/F/OH)
CaCalcium
Ca Hydrougrandite(Ca,Mg,Fe2+)3(Fe3+,Al)2[(OH)4(SiO4)2]
Ca CalzirtiteCaZr3TiO9
Ca PerovskiteCaTiO3
Ca AndraditeCa3Fe23+(SiO4)3
Ca DiopsideCaMgSi2O6
Ca VesuvianiteCa19Fe3+Al4(Al6Mg2)(☐4)☐[Si2O7]4[(SiO4)10]O(OH)9
Ca TitaniteCaTi(SiO4)O
Ca ApatiteCa5(PO4)3(Cl/F/OH)
Ca CalciteCaCO3
Ca AragoniteCaCO3
TiTitanium
Ti CalzirtiteCaZr3TiO9
Ti PerovskiteCaTiO3
Ti IlmeniteFe2+TiO3
Ti TitaniteCaTi(SiO4)O
FeIron
Fe Hydrougrandite(Ca,Mg,Fe2+)3(Fe3+,Al)2[(OH)4(SiO4)2]
Fe AndraditeCa3Fe23+(SiO4)3
Fe IlmeniteFe2+TiO3
Fe MagnetiteFe2+Fe23+O4
Fe VesuvianiteCa19Fe3+Al4(Al6Mg2)(☐4)☐[Si2O7]4[(SiO4)10]O(OH)9
Fe CoalingiteMg10Fe23+(OH)24[CO3] · 2H2O
Fe BrugnatelliteMg6Fe3+(CO3)(OH)13 · 4H2O
CuCopper
Cu NakauriiteCu8(SO4)4(CO3)(OH)6 · 48H2O
Cu ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O
Cu MalachiteCu2(CO3)(OH)2
ZrZirconium
Zr CalzirtiteCaZr3TiO9
Zr ZirconZr(SiO4)
AuGold
Au GoldAu

References

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Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Sigismund, P. (1948) Granato e vesuvianite in Val Malenco. Atti della Società italiana di scienze naturali, 87, 145-171.
Sigismund, P. (1949) Perowskite in Val Malenco. Rendiconti della Società Mineralogica Italiana, 5, 133-133.
Sigismund, P. (1949) Titanclinohumite, olivine e ripidolite di Valmalenco. Atti della Società italiana di scienze naturali, 88, 145-171.
Gramaccioli, C.M. (1962) I minerali valtellinesi nella raccolta di Pietro Sigismund. Ed. privata, Milano, 179 pp.
Bedognè, F. (1970) Rocca di Castellaccio. In: Boscardin, M., De Michele, V.,and Scaini, G. (1970) Itinerari mineralogici della Lombardia. Ed. Museo civico di storia naturale e Società italiana di scienze naturali, Milano, 86-88.
De Michele, V. (1974) Guida mineralogica d'Italia. Ed. De Agostini, Novara, 2 vol., 408 pp.
Gramaccioli, C.M. (1975) Minerali alpini e prealpini. Istituto Italiano Edizioni Atlas, Bergamo, 2 vol., 472 pp.
Bedognè, F. (1979) Itinerari mineralogici. Valmalenco e media Valtellina. Ed. Comunità Montana Valtellina-Ass. Turismo, Sondrio, 63 pp.
Trommsdorff, V. and Evans, B.W. (1980) Titanian hydroxyl-clinohumite formation and breakdown in antigorite rocks (Malenco - Italy). Contributions to Mineralogy and Petrology, 72, 229-242.
Boscardin, M., and Preite, D. (1982) Calzirtit, Milarit und Compreignacit aud den italienischen Zentralalpen. Lapis, 1982/10, 15-16.
Preite, D. (1986) Calzirtite di Ciappanico. Rivista Mineralogica Italiana, 10(3), 139.
Bedognè, F., Montrasio, A., and Sciesa, E. (1993) I minerali della provincia di Sondrio: Valmalenco. Bettini, Sondrio, 275 pp.
Callegari, A., Mazzi, F., and Ungaretti, L. (1997) The crystal structure of the orthorhombic calzirtite from Val Malenco (Italy). Neues Jahrbuch für Mineralogie, Monatshefte, 467-480.
Bedognè, F., Montrasio, A., and Sciesa, E. (2006) I minerali della media-alta Valtellina, delle Orobie valtellinesi e della Val Poschiavo. Aggiornamenti sulle altre località della provincia di Sondrio. Bettini, Sondrio, 255 pp.
Bedognè, F. (2011) Microminerali della Valmalenco. Nuove segnalazioni e aggiornamenti. Rivista Mineralogica Italiana, 35(1), 40-45.

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