{"product_id":"rare-statement-tremmolite-9-8kg-afghanistan-and-pakistan-range","title":"Tremolite Crystal Spray, 21.6 lb, Afghanistan–Pakistan Border","description":"\u003cp data-buy-window=\"2026-09-12T20:17:23.242Z\"\u003e\u003cstrong\u003e24-hour buy window. Add to cart before Sat, Sep 12, 2:17 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, one of the rock-forming silicates that only grows well when dolomitic limestone is cooked and squeezed by metamorphism. Most of it in the world is dull, massive, or fibrous. Crystals like these, long prismatic blades grown in open sprays with clean faces, are the exception, and they come from very few places.\u003c\/p\u003e\n\u003cp\u003eThe Afghanistan–Pakistan border ranges of Badakhshan, Kunar and Khyber Pakhtunkhwa are the source for the best large tremolite specimens on the market. The color in this material runs from white and silver-gray to green where chromium enters the structure, and the blades carry a silky luster along their length that reads differently from every angle.\u003c\/p\u003e\n\u003cp\u003eAt 9.8 kg (21.6 lb) this is a statement specimen, not a cabinet piece. It is the largest tremolite I have handled. One of one.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWeight: 9.8 kg (21.6 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: 9.8 kg (21.6 lb)\u003c\/li\u003e\n\u003cli\u003eHabit: prismatic to bladed crystals in a spray\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, crated if needed, 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":53492310212897,"sku":null,"price":2600.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0252\/6845\/3410\/files\/show-find-1_0863957d-1ba1-4919-82a8-44820f61c865.jpg?v=1789157854","url":"https:\/\/www.crystals.com\/products\/rare-statement-tremmolite-9-8kg-afghanistan-and-pakistan-range","provider":"CRYSTALS.COM","version":"1.0","type":"link"}