#greenockite

[ketrinadrawsalot]

Sharktober Day 5: Crystal sharks (Is it weird that greenockite isn’t green?)

[adamsminerals]

Greenockite from Lehigh Pennsylvania #minerals #followme #adamsminerals #greenockite #rareroxxx https://www.instagram.com/p/CAblaI0Hgtv/?igshid=1rcx5yunpk9v5

[ifuckingloveminerals]

Wurtzite, Colusite, Greenockite, Sphalerite

Fantiscritti quarry, Carrara, Apuan Alps, Massa-Carrara Province, Tuscany, Italy

[bijoux-et-mineraux]

Greenockite - Kelmis (Moresnet), Plombieres, Liege Province, Belgium

[elements-and-minerals]

Greenockite

Greenockite is chemically composed of cadmium sulphide (CdS). It was discovered and named in 1840 in Scotland after Lord Greenock. It is a member of the wurtzite group and appears from yellow to red in colour with a hexagonal pyramidal crystal structure. It ranks 3 - 3½ on the Mohs scale of hardness. 

It is an uncommon mineral of sulphide deposits and caution should be used when identifying yellow greenockite because its dimorph hawleyite appears in identical environments and has an identical coating. It is also not as rare. Greenockite isn't common enough to mine profitably.

Greenockite with a yellow colouring.

Sources:

http://adsabs.harvard.edu/abs/1939Natur.144Q1013K

http://www.mindat.org/min-1746.html

http://education.jlab.org/itselemental/ele048.html

[bijoux-et-mineraux]

Greenockite - Bolivia

[bijoux-et-mineraux]

Greenockite included Smithsonite

[inlovewithgeosciences]

Greenockite, CdS

Locality: Bolivia