{"product_id":"australite-button-in-box-kalgoorlie-western-australia-au031","title":"\"Button\" Australite in box – Kalgoorlie, Western Australia - AU031","description":"\u003cul\u003e\n\u003cli\u003eLocation: Kalgoorlie, Western Australia\u003c\/li\u003e\n\u003cli\u003eTotal weight (with box): 10.6g\u003c\/li\u003e\n\u003cli\u003ePackaging: clear plastic box (5.8 x 3.8 x 1.6 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. The molten material was ejected thousands of kilometres to Australia, where it briefly left Earth's atmosphere. Upon re-entry, it underwent rare secondary refusion, 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 ascend just beyond the atmosphere. Upon re-entry, they underwent a rare ablative melting process. Under aerodynamic stress, molten material accumulated along the tektite's edges, forming the characteristic ablative rim — clear evidence of formation during flight. This is known as the ablative phenomenon. Australite buttons typically take the shape of a disc, lens, mushroom, or saucer, and are considered the most aesthetic and perfectly formed natural glasses in the world. Other tektites (e.g. moldavites) do not occur in this shape or quality.\n2. A unique worldwide location\nThese tektites are found exclusively in central and southern Australia — such shaped specimens do not exist anywhere else on Earth. Although the dispersion field is wide, collector-quality buttons are very rare.\n3. Limited and diminishing resource\nThe richest sites (e.g., the Nullarbor Plain) were mostly exhausted 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 may even result in imprisonment.\n4. Excellent investment potential\nThe prices of well-preserved specimens continue to rise — especially for symmetrical buttons with rims. Like moldavites, australites have collector 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 fiercely compete — many never reaching Europe.\u003c\/p\u003e","brand":"PeltramMinerals","offers":[{"title":"Default Title","offer_id":58028649120069,"sku":"AU031","price":161.6,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0881\/1659\/2965\/files\/29807_photoroom-20241231-124125.jpg?v=1779384125","url":"https:\/\/moldavite.it\/en\/products\/australite-button-in-box-kalgoorlie-western-australia-au031","provider":"Moldavite.it","version":"1.0","type":"link"}