{"product_id":"red-cap-amethyst-cluster","title":"Red cap Amethyst cluster","description":"\u003cp\u003eRed Cap Amethyst Quartz Cluster with Hematite Coating\u003c\/p\u003e\n\u003cp\u003eThis eye-catching red cap amethyst specimen features a dense cluster of well-formed quartz points coated in a rich iron-derived layer, giving the surface its distinctive deep red to coppery tone. The contrast between the underlying amethyst and the iron-rich outer coating creates a visually striking and geologically informative piece.\u003c\/p\u003e\n\u003cp\u003eThe surface is made up of tightly packed crystal terminations, each sharply defined and naturally formed. These points catch and scatter light, producing a subtle metallic shimmer caused by fine hematite particles coating the quartz.\u003c\/p\u003e\n\u003cp\u003eAround the edges and base, natural amethyst is visible beneath the red layer, showing soft purple tones typical of iron-bearing quartz. This transition highlights multiple stages of formation—initial quartz growth followed by later iron-rich mineral deposition.\u003c\/p\u003e\n\u003cp\u003eThe overall structure is raw and unpolished, preserving the natural crystal habit. Its elongated, slightly tapered shape gives it a strong display presence, with texture and depth across the entire surface.\u003c\/p\u003e\n\u003cp\u003e🔍 Key Features\u003c\/p\u003e\n\u003cp\u003eMaterial: Quartz (Amethyst variety) with hematite coating\u003c\/p\u003e\n\u003cp\u003eFormula: SiO₂\u003c\/p\u003e\n\u003cp\u003eColour: Deep red \/ copper (hematite) with purple amethyst edges\u003c\/p\u003e\n\u003cp\u003eCause of Colour: Iron oxide (hematite) coating over quartz crystals\u003c\/p\u003e\n\u003cp\u003eCrystal System: Trigonal\u003c\/p\u003e\n\u003cp\u003eLustre: Vitreous with metallic sheen from iron coating\u003c\/p\u003e\n\u003cp\u003eFormation: Natural cluster with drusy crystal terminations\u003c\/p\u003e\n\u003cp\u003eFinish: Raw, unpolished\u003c\/p\u003e\n\u003cp\u003e📏 Dimensions\u003c\/p\u003e\n\u003cp\u003eSize: 13 cm x 5.2 cm\u003c\/p\u003e\n\u003cp\u003eWeight: 300 grams\u003c\/p\u003e\n\u003cp\u003e🧪 Geological \u0026amp; Scientific Notes\u003c\/p\u003e\n\u003cp\u003eAmethyst forms when silica-rich fluids crystallise within cavities in volcanic rock. Its purple colour is caused by trace iron within the quartz structure, influenced by natural irradiation.\u003c\/p\u003e\n\u003cp\u003eThe red “cap” is created by hematite (Fe₂O₃), an iron oxide mineral deposited from iron-rich fluids during or after crystal growth. This coating gives the piece its bold colour and subtle metallic shimmer.\u003c\/p\u003e\n\u003cp\u003eThis specimen captures multiple geological stages in one piece—quartz crystallisation followed by secondary mineral deposition.\u003c\/p\u003e\n\u003cp\u003e🧼 Care Information\u003c\/p\u003e\n\u003cp\u003eAvoid prolonged water exposure (can affect surface coating over time)\u003c\/p\u003e\n\u003cp\u003eDo not use chemicals or ultrasonic cleaners\u003c\/p\u003e\n\u003cp\u003eDust gently with a soft brush\u003c\/p\u003e\n\u003cp\u003eHandle carefully to protect crystal points\u003c\/p\u003e","brand":"Crystal Ballerz","offers":[{"title":"Default Title","offer_id":53755970519381,"sku":null,"price":65.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1039\/9295\/1125\/files\/rn-image_picker_lib_temp_c1b2d448-58e3-47dc-9e66-0d73f10bd52c.jpg?v=1776965133","url":"https:\/\/crystalballerz.co.uk\/products\/red-cap-amethyst-cluster","provider":"Crystal Ballerz","version":"1.0","type":"link"}