tin mountain pegmatite
1TMP — Temporary file (Computing » File Extensions) ** Trimethoprim (Medical » Physiology) * The Miniatures Page (Community » Media) * Tampere, Finland (Regional » Airport Codes) * Tompkins Trustco, Inc. (Business » AMEX Symbols) * Tax Matters Partner… …
2mineral deposit — Introduction aggregate of a mineral in an unusually high concentration. About half of the known chemical elements (chemical element) possess some metallic (metal) properties. The term metal, however, is reserved for those chemical… …
3Precambrian time — Interval of geologic time from с 3. 8 billion years ago, the age of the oldest known rocks, to 544 million years ago, the beginning of the Cambrian Period. This interval represents more than 80% of the geologic record and thus provides important… …
4Igneous rock — Geologic provinces of the world (USGS)   Shield …
5chemical element — Introduction also called element, any substance that cannot be decomposed into simpler substances by ordinary chemical processes. Elements are the fundamental materials of which all matter is composed. This article considers the… …
6Tusionite — Infobox mineral name = Tusionite category = Borate mineral boxwidth = boxbgcolor = caption = formula = MnSn(BO3)2 molweight = color = Colorless, light yellow to yellow brown habit = Thin platy crystals in rosettes system = Trigonal twinning =… …
