Hemimorphite
| ID | 134 | |
|---|---|---|
| Mineral | Hemimorphite | |
| Location | Ojuela Mine - Mapimi - Durango - Mexico | |
| Fluorescence | LW-UV: close SW-UV: close |
|
| Mindat.org |
View Hemimorphite information at mindat.org |
|
Mindat data
| ID | 1860 |
|---|---|
| Long ID | 1:1:1860:5 |
| Formula |
Zn4(Si2O7)(OH)2 · H2O
|
| IMA Status |
0 1 |
| Other Occurrences | Secondary mineral in the weathered portions of zinc deposits. |
| Industrial | Ore of zinc. |
| Discovery Year | 1853 |
| Diapheny | Transparent,Translucent |
| Cleavage | Perfect on {110}, poor on {101}, {001} rare |
| Tenacity | brittle |
| Colour | Colorless, white, pale blue, pale green, gray, brown |
| Hardness (min) | 4.5 |
| Hardness (max) | 5.0 |
| About the name | Named in 1853 by Adolph Kenngott in allusion to the hemimorphic morphology of the crystals. Many names were previously assigned to this species, including calamine. Hemimorphite was chosen by the International Mineralogical Association, over calamine, in 1962. |
| Streak | White |
| Crystal System | Orthorhombic |
| Cleavage Type | Perfect |
| Fracture type | Irregular/Uneven,Sub-Conchoidal |
| Morphology | Thin tabular crystals, sheaf-like or fan-like aggregates, stalactitic, mammillary, botryoidal. |
| Twinning | On {101} rare |
| UV | May be bluish under SW UV. |
| Thermal Behaviour | Heated in a closed tube, it decrepitates, whitens, and gives off water. Before the blowpipe, almost infusible (F = 6). |
| key_elements |
0 |
| shortcode_ima | Hmp |
Details
Price: € 5
Dimensions: Not registered
Weight: 17 g
Visibile in overview:
Notes:
| Symbol | Element | |
|---|---|---|
| H | Hydrogen | |
| O | Oxygen | |
| Si | Silicium | |
| Zn | Zinc |