Galena and Chalcopyrite
| ID | 397 | |
|---|---|---|
| Mineral |
Galena
Chalcopyrite |
|
| Location | Cavnic Mine - Cavnic - Maramures - Romania | |
| Fluorescence | LW-UV: close SW-UV: close |
|
| Mindat.org |
View Galena information at mindat.org View Chalcopyrite information at mindat.org |
|
Mindat data
| ID | 1641 |
|---|---|
| Long ID | 1:1:1641:0 |
| Formula |
PbS
|
| IMA Status |
0 1 |
| Industrial | Principal ore of lead. Often contains silver and is a frequent ore of that metal as well. |
| Diapheny | Opaque |
| Cleavage | {001} |
| Tenacity | brittle |
| Colour | Lead-grey |
| Hardness (min) | 2.5 |
| Hardness (max) | 2.5 |
| Luminescence | None |
| Lustre | Metallic |
| About the name | Named by Pliny the Elder in 77-79 from the Greek "galene" meaning "lead ore". |
| Streak | Lead-grey |
| Crystal System | Isometric |
| Cleavage Type | Perfect |
| Fracture type | Sub-Conchoidal |
| Morphology | Cubes, octahedrons, cube-octahedron combinations and rarely dodecahedrons. Rarely, platy twins. |
| Twinning | Spinel-type {111}, lamellar {114} |
| UV | Not fluorescent in UV. |
| Thermal Behaviour | In an open tube, gives sulfurous fumes. |
| key_elements |
0 |
| shortcode_ima | Gn |
| Group | Galena Group |
| ID | 955 |
|---|---|
| Long ID | 1:1:955:7 |
| Formula |
CuFeS2
|
| IMA Status |
0 1 |
| Other Occurrences | It is the most abundant copper-bearing mineral and is widespread. It is a primary mineral in hydrothermal veins, disseminations, and massive replacements; the principal copper mineral of porphyry copper deposits. |
| Industrial | It is the principal ore of copper. |
| Discovery Year | 1725 |
| Diapheny | Opaque |
| Cleavage | Indistinct on {011}, sometimes distinct. |
| Tenacity | brittle |
| Colour | Brass yellow, often with an iridescent tarnish. |
| Hardness (min) | 3.5 |
| Hardness (max) | 4.0 |
| Luminescence | None |
| Lustre | Metallic |
| About the name | Named in 1725 by Johann Friedrich Henckel from the Greek "chalkos", copper, and "pyrites", strike fire. |
| Streak | Greenish black |
| Crystal System | Tetragonal |
| Cleavage Type | Poor/Indistinct |
| Fracture type | Irregular/Uneven |
| Morphology | Typically found as equant to wedge-shaped pseudo-tetrahedral dispenoidal crystals, often modified by tetragonal scalenohedral faces. Mostly found massive or in disseminated grains and major deposits of such material are known. |
| Twinning | Twinned on {112} and {012}, penetration or cyclic. |
| key_elements |
0 |
| shortcode_ima | Ccp |
| Group | Chalcopyrite Group |
Details
Price: € 2
Dimensions: Not registered
Weight: Not registered
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Notes:
| Symbol | Element | |
|---|---|---|
| Cu | Copper | |
| Fe | Iron | |
| Pb | Lead |
|
| S | Sulfur |