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Actinolite : ☐Ca2(Mg,Fe2+)5(Si8O22)(OH)2 | |
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Prabornaz Mine (Praborna Mine), Saint-Marcel, Aosta Valley, Italy Image width 2 cm. Found in 1992. Collection and photo Giovanni Fraccaro. |
| © GiovanniFraccaro | Photo ID: 49681 View Count: 492 |
Braunite : Mn2+Mn3+6[O8|SiO4] | |
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Prabornaz Mine (Praborna Mine), Saint-Marcel, Aosta Valley, Italy Black crystals of Braunite (size 3-4 mm) on albite matrix. Found in 1994. Collection and photo Giovanni Fraccaro. |
| © GiovanniFraccaro | Photo ID: 44943 View Count: 364 |
Braunite : Mn2+Mn3+6[O8|SiO4] | |
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Prabornaz Mine (Praborna Mine), Saint-Marcel, Aosta Valley, Italy Crystal size 4 mm on albite matrix. Found in 1998. Collection and photo Giovanni Fraccaro. |
| © GiovanniFraccaro | Photo ID: 44944 View Count: 350 |
Braunite : Mn2+Mn3+6[O8|SiO4] | |
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Prabornaz Mine (Praborna Mine), Saint-Marcel, Aosta Valley, Italy Black crystal of Braunite (size 3 mm) on quartz matrix. Collection and photo Giovanni Fraccaro. |
| © G.Fraccaro | Photo ID: 45355 View Count: 334 |
Braunite : Mn2+Mn3+6[O8|SiO4] | |
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Prabornaz Mine (Praborna Mine), Saint-Marcel, Aosta Valley, Italy Black crystal of Braunite (size 4 mm) with piemontite on quartz matrix. Found in 1993. Collection and photo Giovanni Fraccaro. |
| © GiovanniFraccaro | Photo ID: 44942 View Count: 312 |
Braunite : Mn2+Mn3+6[O8|SiO4], Tremolite : ☐[Ca2][Mg5][(OH)2|Si8O22] | |
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Prabornaz Mine (Praborna Mine), Saint-Marcel, Aosta Valley, Italy Tremolite mass with white Tremolite Size: 5,5 x 5,5 cm Collection and photo: Arliguie M |
| © Arliguie M | Photo ID: 93914 View Count: 156 |
Braunite : Mn2+Mn3+6[O8|SiO4], Calcite : CaCO3 | |
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Prabornaz Mine (Praborna Mine), Saint-Marcel, Aosta Valley, Italy Lustrous black Braunite crystals measuring 1 mm with white Calcite crystals on white massive Quartz. Specimen size: 5x3x3 cm. Self collected 1986. Photo and collection Alessandro Cantamessa (#349). |
| Photo ID: 150601 View Count: 113 | |
Diopside (Var: Violane) : CaMg[Si2O6] | |
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Prabornaz Mine (Praborna Mine), Saint-Marcel, Aosta Valley, Italy Crystallised Violane. Field of view 5mm. Photo & collection Paolo Grosso |
| © Paolo Grosso | Photo ID: 76709 View Count: 516 |
Diopside (Var: Violane) : CaMg[Si2O6] | |
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Prabornaz Mine (Praborna Mine), Saint-Marcel, Aosta Valley, Italy Image width 3 cm. Self collected 1994. Photo and collection Giovanni Fraccaro. |
| © GiovanniFraccaro | Photo ID: 45665 View Count: 461 |
Diopside (Var: Violane) : CaMg[Si2O6] | |
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Prabornaz Mine (Praborna Mine), Saint-Marcel, Aosta Valley, Italy Field of View 2x4 cm,self collected 1996.Photo and collection Paolo Grosso |
| © Paolo Grosso | Photo ID: 35473 View Count: 567 |
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