{"product_id":"pink-cobaltoan-calcite-on-matrix-democratic-republic-of-the-congo-0-22-lbs","title":"Pink Cobaltoan Calcite on Matrix – Democratic Republic of the Congo – 0.22 lbs","description":"\u003cp class=\"PDq2pG_selectionAnchorContainer\"\u003eA vivid Pink Cobaltoan Calcite specimen from the Democratic Republic of the Congo, featuring richly colored crystalline growth across contrasting natural matrix. Mounted vertically on a custom display base, this sculptural specimen presents an impressive approximately 3.5-inch profile while showcasing its strongest crystal coverage in an elevated position.\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe primary display face is covered with densely intergrown calcite crystals ranging from soft rose pink to saturated raspberry and magenta. Rounded crystal aggregates, small sparkling faces, and recessed pockets create a highly textured three-dimensional surface that flashes brightly under direct lighting.\u003c\/p\u003e\n\u003cp\u003eColor saturation varies naturally across the formation. The most intense fuchsia-pink growth is concentrated along the crystal-rich face and upper edges, transitioning into paler blush, cream, and nearly colorless calcite toward the surrounding matrix. These variations reveal separate areas or stages of mineral growth and give the specimen considerable visual depth.\u003c\/p\u003e\n\u003cp\u003eThe tan-to-gray host matrix remains visible along the sides and reverse, providing strong contrast against the vibrant pink calcite. Small green mineralized areas appear near the lower portion of the matrix and may represent copper-bearing secondary minerals commonly associated with material from the region; their precise identity has not been analytically confirmed.\u003c\/p\u003e\n\u003cp\u003eOften marketed as “Cobalt Calcite,” the more precise mineralogical description is cobaltoan calcite—calcite whose pink coloration results from cobalt substituting for a small portion of the calcium within the crystal structure. The amount and distribution of cobalt can produce colors ranging from delicate pink to intense magenta.\u003c\/p\u003e\n\u003cp\u003eMeasuring approximately 1.5 × 2 × 3.5 inches and weighing 0.22 pounds, this compact mounted specimen delivers exceptional color and sparkle for its size. Its vibrant crystalline coverage, contrasting matrix, mineral association, and upright presentation make it a memorable example of classic Congolese cobaltoan calcite.\u003c\/p\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cp\u003eMineral: Cobaltoan Calcite\u003c\/p\u003e\n\u003cp\u003eCommon Trade Name: Cobalt Calcite\u003c\/p\u003e\n\u003cp\u003eFormation: Pink crystalline calcite on natural matrix\u003c\/p\u003e\n\u003cp\u003eLocality: Democratic Republic of the Congo\u003c\/p\u003e\n\u003cp\u003eWeight: 0.22 lbs (approximately 100 grams)\u003c\/p\u003e\n\u003cp\u003eDimensions: Approximately 1.5 × 2 × 3.5 inches\u003c\/p\u003e\n\u003cp\u003eColor: Rose pink, raspberry, magenta, blush, pale pink, cream, tan, gray, and green accents\u003c\/p\u003e\n\u003cp\u003eCrystal Habit: Densely intergrown crystalline aggregates with rounded and sparkling growth\u003c\/p\u003e\n\u003cp\u003ePrimary Display Face: Broad pink mineralized surface with recessed pockets and variations in crystal size\u003c\/p\u003e\n\u003cp\u003eMatrix: Natural tan-to-gray host rock with localized green mineralization\u003c\/p\u003e\n\u003cp\u003eAssociated Minerals: Green areas may represent secondary copper mineralization; exact composition has not been analytically confirmed\u003c\/p\u003e\n\u003cp\u003eColor Origin: Pink coloration produced by cobalt substituting for a portion of the calcium within calcite\u003c\/p\u003e\n\u003cp\u003eLuster: Vitreous to sparkling\u003c\/p\u003e\n\u003cp\u003eTransparency: Transparent to translucent crystals over predominantly opaque matrix\u003c\/p\u003e\n\u003cp\u003eCrystal System: Trigonal\u003c\/p\u003e\n\u003cp\u003eChemical Formula: CaCO₃ with partial cobalt substitution\u003c\/p\u003e\n\u003cp\u003eMohs Hardness: Approximately 3\u003c\/p\u003e\n\u003cp\u003eCleavage: Perfect rhombohedral cleavage in three directions\u003c\/p\u003e\n\u003cp\u003eMounting: Affixed to a custom display base produced in-house\u003c\/p\u003e\n\u003cp\u003eDisplay: Elevated upright collector specimen\u003c\/p\u003e\n\u003cp\u003eCondition: Natural mineral specimen with inherent contacts, incomplete crystals, matrix fractures, surface deposits, color variations, extraction-related irregularities, and minor edge wear\u003c\/p\u003e\n\u003cp\u003eExact specimen shown\u003c\/p\u003e\n\u003ch2\u003eAbout Cobaltoan Calcite\u003c\/h2\u003e\n\u003cp\u003eCobaltoan calcite is a cobalt-bearing variety of calcite distinguished by its characteristic pink-to-magenta coloration. Small amounts of cobalt replace calcium within the calcite crystal structure, producing colors considerably more saturated than those typically seen in ordinary calcite.\u003c\/p\u003e\n\u003cp\u003eThe name “cobalt calcite” is widely used in the mineral trade, although “cobaltoan calcite” more accurately describes the material because it remains calcite rather than becoming a separate cobalt mineral species. Color intensity can vary according to the amount and distribution of cobalt, crystal chemistry, associated minerals, and different generations of growth.\u003c\/p\u003e\n\u003cp\u003eThe copper- and cobalt-producing regions of the Democratic Republic of the Congo are internationally celebrated for brightly colored secondary minerals. Cobaltoan calcite from these deposits may occur with copper-bearing minerals, cobalt minerals, quartz, dolomite, and complex oxidized matrix associations.\u003c\/p\u003e\n\u003cp\u003eThe green coloration visible within this specimen’s matrix is suggestive of secondary copper mineralization, potentially including minerals such as malachite. Because visual identification alone is not conclusive, those areas are conservatively described as unidentified green mineralization.\u003c\/p\u003e\n\u003cp\u003eCalcite is softer and more easily cleaved than quartz. Protect the specimen from impacts, acids, harsh cleaning products, prolonged soaking, and sudden temperature changes. Handle it by the display base and clean it only with a soft, dry brush.\u003c\/p\u003e\n\u003ch2\u003eCollector Notes\u003c\/h2\u003e\n\u003cp\u003eThis specimen features:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eNatural cobaltoan calcite from the Democratic Republic of the Congo\u003c\/li\u003e\n\u003cli\u003eVivid rose-pink to saturated magenta coloration\u003c\/li\u003e\n\u003cli\u003eDense crystalline coverage across the primary display face\u003c\/li\u003e\n\u003cli\u003eSparkling reflective crystal surfaces\u003c\/li\u003e\n\u003cli\u003eRounded and intergrown calcite aggregates\u003c\/li\u003e\n\u003cli\u003eRecessed pockets with concentrated crystal growth\u003c\/li\u003e\n\u003cli\u003eAttractive variation from pale blush to deep raspberry pink\u003c\/li\u003e\n\u003cli\u003eStrong contrast against tan-to-gray natural matrix\u003c\/li\u003e\n\u003cli\u003eLocalized green secondary mineralization\u003c\/li\u003e\n\u003cli\u003eCompact approximately 100-gram collector size\u003c\/li\u003e\n\u003cli\u003eSculptural 3.5-inch upright profile\u003c\/li\u003e\n\u003cli\u003eCustom display base produced in-house\u003c\/li\u003e\n\u003cli\u003eElevated, ready-to-display presentation\u003c\/li\u003e\n\u003cli\u003eMultiple attractive viewing angles\u003c\/li\u003e\n\u003cli\u003eClassic cobalt-bearing Congolese mineral character\u003c\/li\u003e\n\u003cli\u003eOne-of-a-kind natural mineral specimen\u003c\/li\u003e\n\u003cli\u003eExact specimen pictured\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003ePerfect for collectors of cobaltoan calcite, cobalt calcite, pink minerals, Congolese minerals, African mineral specimens, copper-cobalt deposit minerals, mounted crystals, and vividly colored collector specimens.\u003c\/p\u003e\n\u003cp\u003eProfessionally packaged and shipped from Colorado.\u003c\/p\u003e\n\u003cp\u003eYou will receive the exact specimen shown.\u003c\/p\u003e\n\u003cp\u003eEvery order is backed by our commitment to quality and customer satisfaction. Thank you for supporting our family-owned small business.\u003c\/p\u003e","brand":"Serenity Soul Stones","offers":[{"title":"Default Title","offer_id":49964456968442,"sku":null,"price":39.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0837\/2328\/8826\/files\/PinkCobaltoanCalciteonMatrix_DemocraticRepublicoftheCongo_0.22lbs_4.jpg?v=1785515011","url":"https:\/\/serenitysoulstones.com\/products\/pink-cobaltoan-calcite-on-matrix-democratic-republic-of-the-congo-0-22-lbs","provider":"Serenity Soul Stones","version":"1.0","type":"link"}