Antimony and Pyrite
| ID | 236 | |
|---|---|---|
| Mineral |
Antimony
Pyrite |
|
| Location | Baia Sprie - Maramures - Romania | |
| Fluorescence | LW-UV: close SW-UV: close |
|
| Mindat.org |
View Antimony information at mindat.org View Pyrite information at mindat.org |
|
Mindat data
| ID | 262 |
|---|---|
| Long ID | 1:1:262:4 |
| Formula |
Sb
|
| IMA Status |
0 1 |
| Other Occurrences | Hydrothermal veins |
| Diapheny | Opaque |
| Cleavage |
Perfect and easy on {0001}, distinct on |
| Tenacity | brittle |
| Colour | Tin-white |
| Hardness (min) | 3.0 |
| Hardness (max) | 3.5 |
| Luminescence | None |
| Lustre | Metallic |
| About the name | From the medieval latin 'antimonium', originally applied to stibnite. The etymology is uncertain; the popular etymology, from ἀντίμοναχός anti-monachos or French antimoine, still has adherents; this would mean "monk-killer", and is explained by many early alchemists being monks, and antimony being poisonous. Another popular etymology is the hypothetical Greek word ἀντίμόνος antimonos, "against aloneness", explained as "not found as metal", or "not found unalloyed" [from Wikipedia]. |
| Streak | Grey |
| Crystal System | Trigonal |
| Cleavage Type | Perfect |
| Fracture type | Irregular/Uneven |
| Morphology | Pseudocubic crystals |
| Twinning |
Twinned on |
| key_elements |
0 |
| shortcode_ima | Sb |
| Group | Arsenic Group |
| ID | 3314 |
|---|---|
| Long ID | 1:1:3314:1 |
| Formula |
FeS2
|
| IMA Status |
0 1 |
| Other Occurrences | Common in many rock types, igneous, metamorphic and sedimentary. |
| Diapheny | Opaque |
| Cleavage | Indistinct on {001}. |
| Tenacity | brittle |
| Colour | Pale brass-yellow |
| Hardness (min) | 6.0 |
| Hardness (max) | 6.5 |
| About the name | Named in antiquity from the Greek "pyr" for "fire", because sparks flew from it when struck with another mineral or metal. Known to Dioscorides (~50 CE) under the name "περι υληζ ιατρικηζ" which included both pyrite and chalcopyrite. |
| Streak | Greenish-black |
| Crystal System | Isometric |
| Cleavage Type | Poor/Indistinct |
| Fracture type | Irregular/Uneven,Conchoidal |
| Morphology | Typically cubic or pyritohedral (pentagonal dodecahedral), sometimes octahedral and combinations are common, resulting in striated faces. Less frequently octahedral, most commonly massive, granular, and sometimes radiating, reniform, discoidal or globular. |
| Twinning | On [110], interpenetrating ('Iron Cross Law'). Twin axis [001] and twin plane {011}, penetration and contact twins. Twinning on (111) was described by Nicol (1904), Goldschmidt and Nicol (1904) and Gaubert (1928), all of whom considered it rare. |
| UV | Not fluorescent in UV |
| Thermal Behaviour | Heated in a closed tube gives a sublimate of sulfur and a magnetic residue. |
| shortcode_ima | Py |
| Group | Pyrite Group |
Details
Price: € 10
Dimensions: Not registered
Weight: 49 g
Visibile in overview:
Notes:
| Symbol | Element | |
|---|---|---|
| Fe | Iron | |
| S | Sulfur | |
| Sb | Antimony |
|