Joanna MayDec 6, 20191 minPreseli BluestonePreseli Bluestone is the name given to Preseli spotted dolerite. It originates from the Preseli Hills in Wales and is one of the stones...
Joanna MayNov 8, 20191 minGolden HealerGolden Healer is the name given to the gold coloured Hematoid Quartz. It is clear quartz with iron oxide growing just beneath the...
Joanna MayOct 18, 20191 minHowliteHowlite is a calcium borosilicate hydroxide mineral, forming in massive or nodules, with crystals of it being very rare. It is colourless...
Joanna MaySep 27, 20191 minJetJet is a hard, gem variety of lignite, a precursor to coal. Jet is not a mineral, but rather a mineraloid. It is of organic origin,...
Joanna MaySep 6, 20191 minPetalitePetalite is a lithium aluminium phyllosilicate mineral. It can be found colourless, or in shades of white, grey, pink or yellow. Petalite...
Joanna MayAug 16, 20191 minSunstoneSunstone is a member of the feldspar family. Its colour is gold to red-brown, often mixed with white. It has an iridescent effect like...
Joanna MayAug 2, 20192 minMahogany ObsidianObsidian forms from molten lava in the last stages of volcanic eruptions, the remaining silica minerals flow onto the surface and cool...
Joanna MayJul 19, 20191 minMookite / MookaiteMookite (also known as mookaite or mook jasper) is found in Mooka Creek, Western Australia. It is formed from tiny skeletal remains found...
Joanna MayJul 5, 20192 minAmazoniteAmazonite is a pale to dark green to blue-green feldspar. It is named after the Amazon River, although it is not found there. The most...
Joanna MayJun 21, 20192 minUnakiteUnakite is composed of green epidote and pink orthoclase feldspar together with quartz and is usually mottled in appearance. Its name...
Joanna MayJun 7, 20191 minTopazTopaz is a silicate mineral of aluminium and fluorine and is one of the hardest naturally occurring minerals. Topaz is found in many...
Joanna MayMay 31, 20192 minKyaniteKyanite is an aluminosilicate mineral which is often columnar or bladed and is splintery. It is typically blue but does come in black,...
Joanna MayMay 24, 20191 minSeleniteSelenite is a type of Gypsum which is a hydrated calcium sulphate. It is white and can appear transparent from one angle and opaque from...
Joanna MayMay 17, 20192 minPetrified / Fossilised WoodPetrified wood is also known as fossilised wood. It is formed when a tree or tree-like plant changes to stone by the process of...
Joanna MayMay 10, 20191 minPrehnitePrehnite is a calcium aluminium silicate mineral. Its colour is usually yellow-green or olive green, but it can also be found colourless,...
Joanna MayMay 3, 20191 minMoss AgateMoss agate is a type of chalcedony (belonging to the quartz family) with inclusions of green minerals giving it the impression of moss...
Joanna MayApr 19, 20192 minSugiliteSugilite is a rare pink to purple cyclosilicate mineral. It is rarely found in crystal form, only in massive. It was first discovered in...
Joanna MayApr 12, 20191 minPietersitePietersite is a variety of quartz (silicon dioxide) composed of Tiger’s Eye, Hawks Eye and Jasper. It has dramatic swirling colours of...
Joanna MayApr 5, 20191 minMoldaviteMoldavite is a member of the Tektite group of natural glass, formed from terrestrial debris ejected during meteorite impacts. Moldavite...
Joanna MayMar 29, 20191 minDioptaseDioptase is a copper cyclosilicate mineral, transparent to translucent and is its colour is vibrant green to blue/green. It is very...