WebIn its colorless state, quartz resembles ice. In fact, the root for crystal comes from the Greek word krystallos-ice-because the ancient Greeks believed clear quartz was ice frozen so … WebQuartz is typically characterized by a density of about 2.65 gm/cm 3, an index of refraction of about 1.54-1.55, and a hardness of about 7 on the Mohs hardness scale. Clear crystal quartz forms naturally when silica rich solutions occur in underground cavities and fractures where conditions will allow unobstructed growth.

is this a galena geode? how do these form? any info is appreciated!

WebQuartz crystals are formed by something called the “"hydrothermal process.”. The word, if broken down describes “hydro = water” and “thermal = temperature.”. Thus Quartz … http://www.quartzpage.de/crs_forms.html irr above 100%

How is a quartz crystal formed? - Quora

WebQuartz exists in two forms: (1) alpha-, or low, quartz, which is stable up to 573 °C (1,063 °F), and (2) beta-, or high, quartz, stable above 573 °C. The two are closely related, with only … WebMicroscopic quartz crystals often form chert seams and nodules as silica-rich groundwater moves through a variety of sedimentary and metamorphic rocks. Chert precipitated from … WebClear crystal quartz forms naturally when silica rich solutions occur in underground cavities and fractures where conditions will allow unobstructed growth. The smooth planar … irr and coc