{"product_id":"neptunite-with-natrolite-1","title":"NEPTUNITE with NATROLITE","description":"A superbly crystallised large cabinet specimen of black Neptunite crystals measuring to 1.5 cm, beautifully contrasting against white Natrolite on a characteristic blue-grey matrix.  From the California State Gem mine (Benitoite Gem Mine) in San Benito County,  California.  The Neptunite occurs as abundant, well-formed lustrous prismatic crystals and is a rare and complex silicate containing potassium, sodium, lithium, iron, manganese and titanium.  The Neptunite occurs in Natrolite veins cutting a glaucophane schist inclusion in a serpentinite body.  An excellent and showy specimen.","brand":"Crystal Classics","offers":[{"title":"Default Title","offer_id":57780982448463,"sku":"CC17382","price":3331.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1011\/3748\/2063\/files\/CC17382_e68ad40d-8059-4005-a23c-8bfd7854f323.jpg?v=1783973519","url":"https:\/\/crystalclassics.co.uk\/products\/neptunite-with-natrolite-1","provider":"Crystal Classics UK","version":"1.0","type":"link"}