Calcite, Quartz (Var: Chalcedony)

Specimen ID: MNN-WRL

Calcite : CaCO3
Quartz (Var: Chalcedony) : SiO2
Mindat locality:

Photo added to

Calcite is common at Halls Gap. Crystals are negative rhombs which are often intergrown to the point of forming hemispherical masses. This geode is about 6 cm wide and is covered in a variety of quartz called chalcedony. Specimen is in the collection of, and photographed by, Alan Goldstein.
Alan Goldstein - 26th November 2004
Liked by
No-one has added this to their favourites.
Log in to comment/edit
4,145,082 minIDs have been issued as of 23rd Mar 2019 12:28 am UTC