Zoisite
| ID | 108 | |
|---|---|---|
| Mineral | Zoisite | |
| Location | Mundarara Mine - Longido - Arusha - Tanzania | |
| Fluorescence | LW-UV: close SW-UV: close |
|
| Mindat.org |
View Zoisite information at mindat.org |
|
Mindat data
| ID | 4430 |
|---|---|
| Long ID | 1:1:4430:7 |
| Formula |
Ca2Al3[Si2O7][SiO4]O(OH)
|
| IMA Status |
0 1 |
| Occurrence | Pegmatite in eclogite |
| Other Occurrences | Medium grade regionally metamorphosed rocks, eclogites, blueschist facies metamorphic rocks. |
| Discovery Year | 1805 |
| Diapheny | Transparent,Translucent |
| Cleavage | Perfect on {010} Imperfect on {100} |
| Tenacity | brittle |
| Colour | Colourless, purple, greyish-white, grey, yellowish-brown, yellow, pink, green, blue, violet |
| Hardness (min) | 6.0 |
| Hardness (max) | 7.0 |
| Lustre | Vitreous, Pearly |
| About the name | Originally named saualpite for the locality Saualpe in Carinthia, Austria, where it occurs in eclogites. The name zoisite was introduced by A.G. Werner in 1805 to honour Sigmund Zois, Baron von Edelstein (1747-1819), Austrian scholar who financed mineral-collecting expeditions. It was from Baron Zois that Werner obtained the holotype specimen from Saualpe (found by mineral dealer Simon Prešern in 1804). |
| Streak | White |
| Crystal System | Orthorhombic |
| Cleavage Type | Perfect |
| Fracture type | Irregular/Uneven,Conchoidal |
| Morphology | Prismatic crystals, columnar to compact, massive |
| Comment Luster | Pearly on cleavage {010} |
| shortcode_ima | Zo |
Details
Price: € 1
Dimensions: Not registered
Weight: Not registered
Visibile in overview:
Notes:
Voorraad zolder doos 1
| Symbol | Element | |
|---|---|---|
| Al | Aluminium | |
| Ca | Calcium | |
| H | Hydrogen | |
| O | Oxygen | |
| Si | Silicium |