Purpurite
| ID | 11 | |
|---|---|---|
| Mineral | Purpurite | |
| Location | Usakos - Karibib - Namibia | |
| Fluorescence | LW-UV: close SW-UV: close |
|
| Mindat.org |
View Purpurite information at mindat.org |
|
Mindat data
| ID | 3311 |
|---|---|
| Long ID | 1:1:3311:0 |
| Formula |
Mn3+(PO4)
|
| IMA Status |
0 1 |
| General Appearance | Small irregular masses. Narrow lenses or veinlets. |
| Occurrence | Oxidized and leached primary lithiophilite pods from a granite pegmatite. |
| Other Occurrences | Primarily an alteration product of lithiophylite in complex granitic pegmatites, rarely from the reaction of bat guano, Fe-Mn deposits and sea water. |
| Discovery Year | 1905 |
| Diapheny | Opaque |
| Cleavage | On {100}, good; on {010}, imperfect. Cleavage surfaces curved or crinkled at times. |
| Tenacity | brittle |
| Colour | Dark purple to purplish red |
| Hardness (min) | 4.0 |
| Hardness (max) | 4.5 |
| Lustre | Vitreous, dull |
| About the name | Named in 1905 by Louis C. Graton and Waldemar T. Schaller from the Latin "purpura" in allusion to its colour. |
| Streak | Light to medium purple, lighter than the colour of the massive mineral. |
| Crystal System | Orthorhombic |
| Cleavage Type | Distinct/Good |
| Fracture type | Irregular/Uneven |
| Morphology | Massive, cleavage fragments to 20 cm. |
| UV | Not fluorescent in UV |
| Comment Luster | Luster of fresh fracture surfaces is satiny; dull on altered surfaces. |
| Publication Year | 1905 |
| shortcode_ima | Pur |
| Group | Triphylite Group |
Details
Price: € 10
Dimensions: Not registered
Weight: 43 g
Visibile in overview:
Notes:
| Symbol | Element | |
|---|---|---|
| Mn | Manganese | |
| O | Oxygen | |
| P | Phosphorus |
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