Sphalerite, Boulangerite and Calcite
| ID | 488 | |
|---|---|---|
| Mineral |
Sphalerite
Boulangerite Calcite |
|
| Location | Trepča complex - Trepca - Trepca - Kosovo | |
| Fluorescence | LW-UV: close SW-UV: close |
|
| Mindat.org |
View Sphalerite information at mindat.org View Boulangerite information at mindat.org View Calcite information at mindat.org |
|
Mindat data
| ID | 3727 |
|---|---|
| Long ID | 1:1:3727:9 |
| Formula |
ZnS
|
| IMA Status |
0 1 |
| Discovery Year | 1847 |
| Diapheny | Transparent,Translucent |
| Cleavage | Perfect {011} |
| Tenacity | brittle |
| Colour | Yellow, light to dark brown, black, red-brown, colourless, light blue. green |
| Hardness (min) | 3.5 |
| Hardness (max) | 4.0 |
| Luminescence | Fluorescent and triboluminescent |
| Lustre | Resinous |
| About the name | Originally called blende in 1546 by Georgius Agricola (Georg Bauer). Known by a variety of chemical-based names subsequent to Agricola and before Glocker, including "zincum". Named Sphalerite in 1847 by Ernst Friedrich Glocker from the Greek σφαλεροζ "sphaleros" = treacherous, in allusion to the ease with which dark varieties were mistaken for galena, but yielded no lead. |
| Streak | Pale yellow to brown. |
| Crystal System | Isometric |
| Cleavage Type | Perfect |
| Fracture type | Conchoidal |
| Twinning | {111} |
| UV | Light colored sphalerite may fluoresce in blue or orange in LW. Fluoresces less strongly, sometimes not at all, in SW or MW. |
| key_elements |
0 |
| shortcode_ima | Sp |
| Group | Sphalerite Group |
| ID | 738 |
|---|---|
| Long ID | 1:1:738:2 |
| Formula |
Pb5Sb4S11
|
| IMA Status |
0 1 |
| Other Occurrences | Low to moderate temperature hydrothermal veins. |
| Discovery Year | 1837 |
| Diapheny | Opaque |
| Cleavage | Distinct on {100} |
| Tenacity | brittle |
| Colour | Lead grey |
| Hardness (min) | 2.5 |
| Hardness (max) | 3.0 |
| Lustre | Metallic |
| About the name | Named in 1837 by Moritz Christian Julius Thaulow in honor of Charles Louis Boulanger (6 May 1810 - 6 October 1849), a French mining engineer. Boulanger first analyzed his namesake species calling it "plomb antimonie sulfure" in 1835. He also translated Leopold von Buch's famous book, "Description physique des Iles Canaries, suivie dʾune indication des principaux volcans du globe", which was a contributing factor in the decline of the Wernerian or Neptunian theory of the origin of the Earth. |
| Streak | Brownish |
| Crystal System | Monoclinic |
| Cleavage Type | Distinct/Good |
| Morphology | Needle-like crystals, rarely rings, fibrous, compact masses. |
| Comment Luster | sometimes silky |
| key_elements |
0 1 |
| shortcode_ima | Bou |
| ID | 859 |
|---|---|
| Long ID | 1:1:859:4 |
| Formula |
Ca(CO3)
|
| IMA Status |
0 1 |
| Other Occurrences | Found in most geologic settings and as a later forming replacement mineral in most other environments in one form or another, it is most common as massive material in limestones and marbles. It forms as chemical sedimentary deposits as limestone, can be regionally or contact metamorphosed into marbles and rarely forms igneous rocks (carbonatites). Also is a common gangue mineral in hydrothermal deposits. |
| Industrial | Mined extensively for a wide variety of uses ranging from lime (cement) to limestone and marble building stones and aggregates, agricultural supplements and optical calcite. |
| Diapheny | Transparent,Translucent |
| Cleavage |
Perfect on |
| Tenacity | brittle |
| Colour | White, Yellow, Red, Orange, Blue, Green, Brown, Gray etc. |
| Hardness (min) | 3.0 |
| Hardness (max) | 3.0 |
| Luminescence | Fluorescent |
| Lustre | Vitreous |
| About the name | Ancient name. Named as a mineral by Gaius Plinius Secundus (Pliny the elder) in 79 from Calx, Latin for Lime. |
| Streak | White |
| Crystal System | Trigonal |
| Cleavage Type | Perfect |
| Fracture type | Conchoidal |
| Morphology | Over 800 different forms have been described. Most commonly as acute rhombohedrons or prismatic with scalenohedral terminations, or combinations of the two. |
| Twinning |
At least four twin laws have been described, the most common being when the twin plane and the composition plane are |
| UV | May be fluorescent under LW UV, mid-range UV or SW UV as well as under X-rays, cathode rays and even sunlight, in a number of colors and shades, commonly an intense red under SW with Mn as an activator (such as at Franklin, New Jersey, USA, and Långban in Sweden. |
| Comment Luster | Pearly on cleavage and {0001}. Can be dull or earthy in chalk variety. |
| shortcode_ima | Cal |
| Group | Calcite Group |
Details
Price: € 20
Dimensions: Not registered
Weight: Not registered
Visibile in overview:
Notes:
None
| Symbol | Element | |
|---|---|---|
| C | Carbon | |
| Ca | Calcium | |
| O | Oxygen | |
| Pb | Lead |
|
| S | Sulfur | |
| Sb | Antimony |
|
| Zn | Zinc |