{"product_id":"thomsonite-2716-55","title":"THOMSONITE on Analcime with Natrolite, Sunderland Bluff, Phillip Island, Bass Coast Shire, Victoria, Australia","description":"\u003cp\u003e\u003cstrong\u003eThomsonite \u003c\/strong\u003erefers to a group of tectosilicate minerals that belong to the zeolite family. Before 1997, it was classified as a single mineral species, but a reclassification by the International Mineralogical Association that year changed it to a series name. Now, the specific mineral types are called thomsonite-Ca and thomsonite-Sr. Among these, thomsonite-Ca is the more prevalent one, and it is a hydrous sodium, calcium, and aluminum silicate with the formula NaCa2Al5Si5O20·6H2O. Strontium can replace calcium in its structure, and the name of the species depends on which element is more dominant. Since the two species look the same, the general name thomsonite is used when no tests have been done. Overall, thomsonite is considered one of the rarer zeolites worldwide.\u003c\/p\u003e\n\u003cp\u003eThomsonite was first discovered in Scotland in 1820 and is named after the Scottish chemist Thomas Thomson. It has an orthorhombic crystal system and a Mohs hardness rating of 5 to 5.5. The mineral can be transparent to translucent and has a density ranging from 2.3 to 2.4. Its colors can vary, appearing colorless, white, beige, or even shades of green, yellow, or red. The crystals usually form long, thin blades that create radial aggregates, and they can also appear as fans or tufts. These aggregates can look spiky, dense and ball-like, or even have worm-like shapes. Common forms include tight acicular clusters and sphericules.\u003cbr\u003e\u003cbr\u003eA classic specimen from the 1970's.\u003c\/p\u003e","brand":"Crystals2Collect A.C.N 651.525.727 Pty Ltd","offers":[{"title":"32 30 17 18 \/ Sunderland Bluff Phillip Island Bass Coast Shire Victoria Australia \/ 2716-55","offer_id":53593726779668,"sku":"2716-15","price":90.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0706\/2047\/9764\/files\/20260805_190246.jpg?v=1785921645","url":"https:\/\/crystals2collect.com\/products\/thomsonite-2716-55","provider":"Crystals2Collect ","version":"1.0","type":"link"}