Talc Talc Talc or talcum is a clay mineral composed of hydrated magnesium silicate with the chemical formula HMg(SiO) or MgSiO(OH). In loose form, it is (in ratio with or without corn starch) one of the most widely used substances known as baby powder. It occurs as foliated to fibrous masses, and in an exceptionally rare crystal form. It has a perfect basal cleavage, and the folia are not elastic, although slightly flexible. The Mohs scale of mineral hardness, based on scratch hardness comparison, defines value 1 as the hardness of talc. Talc can easily be scratched by a fingernail. Talc
Geo-Mineral Exploration Corporation Geo-Mineral Exploration Corporation Geo-Mineral Exploration Corporation is an environmentally-sensitive exploration, acquisition, and merger company, which examines the viability of consolidating historic underground mining properties into small-scale specialty production alliances. The Geo-Mineral Corporation and its independent affiliates, are fully American-owned and operated. The Geo-Mineral Exploration Corporation was formed in 1968, as a limited partnership of twelve mining-industry professionals. In 1969, with claims to three properties in hand, the Geo-Mineral partnership converted all shares to simple, and preferred stock certificates, as the board unanimously voted to change its structure into that of a Corporation. Geo-Mineral Exploration Corporation (also known as Geo, Geomineral,