Talc
| ID | 47 | |
|---|---|---|
| Mineral | Talc | |
| Location | Green Mountain Mine - Day Book - North Carolina - United States of America | |
| Fluorescence | LW-UV: close SW-UV: close |
|
| Mindat.org |
View Talc information at mindat.org |
|
Mindat data
| ID | 3875 |
|---|---|
| Long ID | 1:1:3875:7 |
| Formula |
Mg3Si4O10(OH)2
|
| IMA Status |
0 1 |
| Other Occurrences | Schists and steatite through hydrothermal alteration of mafic rocks. Low-temperature metamorphism of siliceous dolomites. |
| Industrial | Filler in paints, rubber. In cosmetics and as a lubricating dusting powder. |
| Discovery Year | 1546 |
| Diapheny | Transparent,Translucent |
| Cleavage | on {001} |
| Tenacity | sectile |
| Colour | Colorless, white, pale green, bright emerald-green to dark green, brown, gray |
| Hardness (min) | 1.0 |
| Hardness (max) | 1.0 |
| Lustre | Waxy, Greasy, Resinous |
| About the name | Allegedly named in 1546 by Georgius Agricola (Georg Bauer) from Arabic "talq", pure, probably alluding to the color of its powder. |
| Streak | White |
| Crystal System | Triclinic |
| Cleavage Type | Perfect |
| Fracture type | Fibrous,Micaceous |
| Morphology | Euhedral crystals are extremely rare, usually found in platy, foliated to fine-grained compact masses, sometimes has a radial appearance. |
| UV | Not usually fluorescent. |
| Thermal Behaviour | Stable to about 900° Celsius. |
| shortcode_ima | Tlc |
| Group | Pyrophyllite-Talc Group |
Details
Price: € 1
Dimensions: Not registered
Weight: Not registered
Visibile in overview:
Notes:
Voorraad zolder doos 1
| Symbol | Element | |
|---|---|---|
| H | Hydrogen | |
| Mg | Magnesium | |
| O | Oxygen | |
| Si | Silicium |