Annual Show

The purpose of this club is to study, promote an interest in, and disseminate knowledge of Lapidary and various Earth Sciences including but not necessarily limited to geology, paleontology and mineralogy. It is the Club's purpose to provide education in these fields to its members and to the general public; particularly youth and student groups.

UNDERSTANDING MOHS HARDNESS SCALE

From the International Gem Society. For detailed information and explanation of the scale, visit
https://www.gemsociety.org/article/select-gems-ordered-mohs-hardness/

Gems and minerals in the MOHS 6 range:

Aegirine, Amazonite, Amblygonite, Andesine, Anorthoclase,
Benitoite, Bixbyite, Bytownite, Chondroite, Clinohumite,
Helvite, Humite, Hurlbutite, Hyalophane, Labradorite,
Lawsonite, Marcasite, Microcline, Nephrite, Norbergite,
Oligoclase, Petalite, Prehnite, Pumpellyite, Pyrite,
Rutile, Sanidine, Smaragdite, Sugilite, Tantalite,
Tephroite, Vlasovite, Xonotlite, Zektzerite, Zoisite.

Gems and minerals in the MOHS 7 range:

Almandine, Amethyst, Andalusite, Aventurine, Boracite,
Chambersite, Chromdravite, Citrine, Cordierite, Danburite,
Euclase, Forsterite, Grandidierite, Hambergite, Povondraite,
Pyrope, Quartz, Rock Crystal, Sapphirine, Schorlomite,
Sekaninaite, Simpsonite, Smoky Quartz, Spessartine,
Staurolite, Tourmaline, Uvarovite, Zunyite.

Map