{"product_id":"3-4kg-tremmolite-from-afghanistan-pakistan-mountain-range","title":"Tremolite Crystal Specimen, 7.5 lb, Afghanistan–Pakistan Border","description":"\u003cp data-buy-window=\"2026-09-12T20:16:01.384Z\"\u003e\u003cstrong\u003e24-hour buy window. Add to cart before Sat, Sep 12, 2:16 PM Mountain time.\u003c\/strong\u003e After that this piece moves to inquiry only.\u003c\/p\u003e\n\u003cp\u003eTremolite is a calcium-magnesium amphibole that forms when dolomitic limestone is metamorphosed. Nearly all of it is massive or fibrous. Well-formed prismatic crystals with clean faces are uncommon, and large ones come from a short list of localities.\u003c\/p\u003e\n\u003cp\u003eThe Afghanistan–Pakistan border ranges of Badakhshan, Kunar and Khyber Pakhtunkhwa produce the finest of them. The color runs from white and silver-gray to green where chromium enters the structure, and the blades carry a silky luster along their length.\u003c\/p\u003e\n\u003cp\u003eAt 3.4 kg (7.5 lb) this sits on a shelf or console with real presence and without needing a stand. One of one.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWeight: 3.4 kg (7.5 lb).\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGem show order. Ships insured in 2–3 weeks.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdetails\u003e\u003csummary\u003eDetails\u003c\/summary\u003e\u003cul\u003e\n\u003cli\u003eMineral: tremolite, Ca₂Mg₅Si₈O₂₂(OH)₂, amphibole group\u003c\/li\u003e\n\u003cli\u003eLocality: Afghanistan–Pakistan border ranges\u003c\/li\u003e\n\u003cli\u003eWeight: 3.4 kg (7.5 lb)\u003c\/li\u003e\n\u003cli\u003eHabit: prismatic to bladed crystals\u003c\/li\u003e\n\u003cli\u003eHardness: 5–6 on the Mohs scale\u003c\/li\u003e\n\u003cli\u003eOne of one. Selected in person at the Denver Gem \u0026amp; Mineral Show, September 2026\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eShipping\u003c\/summary\u003e\u003cp\u003eGem show order. Ships in 2–3 weeks once the show closes. Packed by hand and insured in transit. Tracking is emailed the day it leaves.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eCare\u003c\/summary\u003e\u003cp\u003eLift from the base, never by the crystal terminations, which are brittle. Dust with a soft dry brush. Keep dry; do not soak.\u003c\/p\u003e\u003c\/details\u003e","brand":"CRYSTALS.COM","offers":[{"title":"Default Title","offer_id":53492305494305,"sku":null,"price":1200.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0252\/6845\/3410\/files\/show-find-1_d1aec5b6-a684-45af-9f04-87100d5f93f8.jpg?v=1789157772","url":"https:\/\/www.crystals.com\/products\/3-4kg-tremmolite-from-afghanistan-pakistan-mountain-range","provider":"CRYSTALS.COM","version":"1.0","type":"link"}