{"product_id":"australite-button-33g-kalgoorlie-western-australia-au074","title":"\"Button\" Australite 3.3g – Kalgoorlie, Western Australia - AU074","description":"\u003cul\u003e\n\u003cli\u003eLocation: Kalgoorlie, Western Australia\u003c\/li\u003e\n\u003cli\u003eWeight: 3.3g\u003c\/li\u003e\n\u003cli\u003eSize: 2.3 x 1.2 x 0.9 cm\u003c\/li\u003e\n\u003cli\u003eDETAILED DESCRIPTION\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eAustralites – a natural phenomenon of extraordinary origin\nAustralites formed approximately 790,000 years ago during a massive meteorite impact in what is now Southeast Asia. Molten material was ejected thousands of kilometres to Australia, briefly leaving Earth's atmosphere. Upon re-entry, it underwent rare secondary remelting, cooled mid-air, and fell to the ground — forming aerodynamically shaped pieces known as \"australite buttons.\"\n1. Unique shape and appearance\nTheir initial velocity was higher than other tektites, allowing them to rise just beyond the atmosphere. Upon re-entry, they were subjected to a rare ablative melting process. Under aerodynamic stress, molten material accumulated along the tektite's edges, forming the characteristic ablative flange — clear evidence of formation during flight. This is known as the ablative phenomenon. Australite buttons typically have the shape of a disk, lens, mushroom, or saucer, and are considered the world's most aesthetic and perfectly formed natural glasses. Other tektites (e.g., moldavites) do not occur in this form or quality.\n2. A single worldwide location\nThese tektites are found exclusively in central and southern Australia — such shaped specimens do not exist anywhere else on Earth. Although the strewn field is extensive, collector-grade buttons are very rare.\n3. Limited and depleting resource\nThe richest sites (e.g., the Nullarbor Plain) were mostly depleted during the 20th century. Today, it is increasingly difficult to find new specimens, and collection is regulated or prohibited in many areas. Heavy fines are imposed for illegal collection or export. Commercial-scale collection can even lead to imprisonment.\n4. Excellent investment potential\nPrices for well-preserved specimens continue to rise — especially for symmetrical buttons with flanges. Like moldavites, australites have collectible and investment value, but are much rarer. Unlike moldavites, which are well-known in Europe, australites are less common, adding significant value to collections. Only a few complete buttons are sold per year, and collectors often compete fiercely — many never reach Europe.\u003c\/p\u003e","brand":"PeltramMinerals","offers":[{"title":"Default Title","offer_id":58027926028613,"sku":"AU074","price":614.05,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0881\/1659\/2965\/files\/52706_photoroom-003-20250728-202216.jpg?v=1779378298","url":"https:\/\/moldavite.it\/en\/products\/australite-button-33g-kalgoorlie-western-australia-au074","provider":"Moldavite.it","version":"1.0","type":"link"}