How to MINE OPAL gems in the OUTBACK
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The Moon Once Had Fountains Of FIRE From Lava Eruptions
US scientists have found traces of carbon in volcanic glass collected from the Apollo missions, and say this volatile gas may have caused fountains of fire on the moon. The moon's surface was hot and ...
Martian Glass: Window Into Possible Past Life?
Researchers from Brown University have used satellite data to detect deposits of glass within impact craters on Mars. Though formed in the searing heat of a violent impact, the glasses just might prov...
Opals are Some of the Most Beautiful and Diverse Gemstones
It's like a magical world inside each one.
Spectacular Crystal Opal Looks Like a Handheld Aquarium
Crystals and gems are revered and collected for their physical beauty and monetary value and this Opal Butte crystal with contra luz color is no exception...
Tachylite
Tachylite (also spelled tachylyte) is a vitreous form of basaltic volcanic glass. This "glass" is formed naturally by the rapid cooling of molten basalt. It is a basic type of igneous rock that is dec...
The Moon Once Had Fountains Of FIRE From Lava Eruptions
US scientists have found traces of carbon in volcanic glass collected from the Apollo missions, and say this volatile gas may have caused fountains of fire on the moon. The moon's surface was hot and ...
Limu o Pele
Limu o Pele or Pele's seaweed (Hawaiian, literally, "seaweed of Pele", after Pele the Hawaiian fire goddess of volcanoes) is a geological term for thin sheets and subsequently shattered flakes of brow...
Limu o Pele - Wikipedia
Martian Glass: Window Into Possible Past Life?
Researchers from Brown University have used satellite data to detect deposits of glass within impact craters on Mars. Though formed in the searing heat of a violent impact, the glasses just might prov...
Tektite
Tektites (from Greek τηκτός "tēktos", molten) are gravel-size bodies composed of black, green, brown or gray natural glass formed from terrestrial debris ejected during extraterrestrial impacts. They ...
Tektite - Wikipedia
Lechatelierite
Lechatelierite is silica glass, amorphous SiO2. One common way in which lechatelierite forms naturally is by very high temperature melting of quartz sand during a lightning strike. The result is an ir...
Lechatelierite - Wikipedia
Moldavite
Moldavite (Czech: Vltavín) is an olive-green or dull greenish vitreous substance possibly formed by a meteorite impact, which would make it one kind of tektite. They were introduced to the scienti...
Moldavite - Wikipedia
Bediasite
Bediasite is a form or type of tektite. It originates in an area in the eastern part of the U.S. state of Texas centered on the small town of Bedias which is 74 miles (119 km) north west of Hous...
Apache tears
Apache tears are rounded nodules of obsidian (volcanic black glass) with diameter from about 0.5 to 5 cm. An Apache tear looks opaque by reflected light, but translucent when held up to light. ...
Apache tears - Wikipedia
Sideromelane
Sideromelane is a vitreous basaltic volcanic glass, usually occurring in palagonite tuff, for which it is characteristic. It is a less common form of tachylite, with which it usually occurs together; ...
Opal
Opal is a hydrated amorphous form of silica; its water content may range from 3 to 21% by weight, but is usually between 6 and 10%. Because of its amorphous character, it is classed as a mineraloid, u...
Opal - Wikipedia
Perlite
Perlite is an amorphous volcanic glass that has a relatively high water content, typically formed by the hydration of obsidian. It occurs naturally and has the unusual property of greatly expanding w...
Perlite - Wikipedia
Coesite
Coesite is a form (polymorph) of silicon dioxide SiO2 that is formed when very high pressure (2–3 gigapascals), and moderately high temperature (700 °C or 1,300 °F), are applied to quartz. C...
Coesite - Wikipedia
Diamond
In mineralogy, diamond (/daɪ(ə)mənd/; from the ancient Greek ἀδάμας – adámas "unbreakable") is a metastable allotrope of carbon, where the carbon atoms are arranged in a variation of the face-centered...
Scoria
Scoria is a highly vesicular, dark colored volcanic rock that may or may not contain crystals (phenocrysts). It is typically dark in color (generally dark brown, black or purplish red), and basaltic o...
Scoria - Wikipedia
Pitchstone
Pitchstone is a dull black glassy volcanic rock formed when viscous lava or magma cools quickly. It is similar to but coarser than obsidian. It is a volcanic glass, however, unlike a glass pitchstone...
Obsidian
Obsidian is a naturally occurring volcanic glass formed as an extrusive igneous rock.It is produced when felsic lava extruded from a volcano cools rapidly with minimum crystal growth. Obsidian is com...
Obsidian - Wikipedia
Trinitite
Trinitite, also known as atomsite or Alamogordo glass, is the glassy residue left on the desert floor after the plutonium-based Trinity nuclear bomb test on July 16, 1945, near Alamogordo, New Mexico....
Trinitite - Wikipedia
Darwin glass
Darwin glass is a natural glass found south of Queenstown in West Coast, Tasmania. It takes its name from Mount Darwin in the West Coast Range, where it was first reported, and later gave its name to ...
Darwin glass - Wikipedia
Chivay obsidian source
The Chivay obsidian source (71.5355° S, 15.6423° W, 4972 masl) is the geological origin of a chemical group of obsidian that is found throughout the south-central Andean highlands including southern P...
Libyan desert glass
Libyan desert glass (LDG), or great sand sea glass is a substance found in areas in the Libyan Desert. Fragments of desert glass can be found over large areas, up to tens of kilometers.
The origi...
Libyan desert glass - Wikipedia
Hyaloclastite
Hyaloclastite is a hydrated tuff-like breccia rich in black volcanic glass, formed during volcanic eruptions under water, under ice or where subaerial flows reach the sea or other bodies of water. It ...
Hyaloclastite - Wikipedia
Georgiaite
Georgiaite is a form or type of tektite. They are found in part of the 34-million-year-old North American strewnfield coming from the Chesapeake Bay impact crater. Two strewnfields and tektite groups ...