{"id":1618,"date":"2026-07-07T20:41:59","date_gmt":"2026-07-07T18:41:59","guid":{"rendered":"https:\/\/mineralien-weltweit.com\/product\/arsenopyrite-calcite-pyrite-sphalerite-mina-noche-buena-mexico\/"},"modified":"2026-07-07T20:41:59","modified_gmt":"2026-07-07T18:41:59","slug":"arsenopyrite-calcite-pyrite-sphalerite-mina-noche-buena-mexico","status":"publish","type":"product","link":"https:\/\/mineralien-weltweit.com\/en\/product\/arsenopyrite-calcite-pyrite-sphalerite-mina-noche-buena-mexico\/","title":{"rendered":"Arsenopyrite with Calcite, Pyrite and Sphalerite from Mina Noche Buena, Zacatecas, Mexico"},"content":{"rendered":"<p class=\"PDq2pG_selectionAnchorContainer\" data-start=\"2073\" data-end=\"2492\">This attractive arsenopyrite specimen comes from the well-known Mina Noche Buena in the Mexican state of Zacatecas. The display side is densely covered with well-formed, metallic arsenopyrite crystals. Small white calcite aggregates add bright accents and create a clear contrast with the silver-gray metallic luster of the crystals. Fine pyrite and sphalerite aggregates are also present in places.   <\/p>\n<p data-start=\"2494\" data-end=\"2775\">The numerous sharply formed crystals give the specimen a lively structure. The even crystal coverage creates a balanced appearance and makes the piece suitable both for collections of Mexican minerals and for systematic collections of sulfide minerals. <\/p>\n<h3 data-section-id=\"ag9133\" data-start=\"2777\" data-end=\"2827\">Arsenopyrite Locality in the State of Zacatecas<\/h3>\n<p data-start=\"2829\" data-end=\"3146\">Mina Noche Buena is located in the Mexican state of Zacatecas. The polymetallic ore deposit is known for various sulfide minerals and sulfosalts. In addition to arsenopyrite, pyrite, sphalerite, calcite, jamesonite and bournonite have been documented from the locality.  <\/p>\n<p data-start=\"3148\" data-end=\"3402\">Arsenopyrite from this locality often occurs as metallic crystals and may be associated with calcite, pyrite or sphalerite. This specimen displays this mineralogical diversity on a densely crystallized display side. <\/p>\n<div class=\"TyagGW_tableContainer\">\n<div class=\"group TyagGW_tableWrapper flex flex-col-reverse w-fit\" tabindex=\"-1\">\n<table class=\"w-fit min-w-(--thread-content-width)\" data-start=\"3404\" data-end=\"4088\">\n<thead data-start=\"3404\" data-end=\"3430\">\n<tr data-start=\"3404\" data-end=\"3430\">\n<th class=\"last:pe-10\" data-start=\"3404\" data-end=\"3414\" data-col-size=\"sm\">Feature<\/th>\n<th class=\"last:pe-10\" data-start=\"3414\" data-end=\"3430\" data-col-size=\"md\">Description<\/th>\n<\/tr>\n<\/thead>\n<tbody data-start=\"3441\" data-end=\"4088\">\n<tr data-start=\"3441\" data-end=\"3470\">\n<td data-start=\"3441\" data-end=\"3455\" data-col-size=\"sm\"><strong data-start=\"3443\" data-end=\"3454\">Mineral<\/strong><\/td>\n<td data-col-size=\"md\" data-start=\"3455\" data-end=\"3470\">Arsenopyrite<\/td>\n<\/tr>\n<tr data-start=\"3471\" data-end=\"3521\">\n<td data-start=\"3471\" data-end=\"3493\" data-col-size=\"sm\"><strong data-start=\"3473\" data-end=\"3492\">Associated minerals<\/strong><\/td>\n<td data-col-size=\"md\" data-start=\"3493\" data-end=\"3521\">Calcite, pyrite, sphalerite<\/td>\n<\/tr>\n<tr data-start=\"3522\" data-end=\"3575\">\n<td data-start=\"3522\" data-end=\"3536\" data-col-size=\"sm\"><strong data-start=\"3524\" data-end=\"3535\">Locality<\/strong><\/td>\n<td data-col-size=\"md\" data-start=\"3536\" data-end=\"3575\">Mina Noche Buena, Zacatecas, Mexico<\/td>\n<\/tr>\n<tr data-start=\"3576\" data-end=\"3609\">\n<td data-start=\"3576\" data-end=\"3587\" data-col-size=\"sm\"><strong data-start=\"3578\" data-end=\"3586\">Dimensions<\/strong><\/td>\n<td data-col-size=\"md\" data-start=\"3587\" data-end=\"3609\">5.9 \u00d7 3.2 \u00d7 3.0 cm<\/td>\n<\/tr>\n<tr data-start=\"3610\" data-end=\"3635\">\n<td data-start=\"3610\" data-end=\"3624\" data-col-size=\"sm\"><strong data-start=\"3612\" data-end=\"3623\">Weight<\/strong><\/td>\n<td data-col-size=\"md\" data-start=\"3624\" data-end=\"3635\">121.8 g<\/td>\n<\/tr>\n<tr data-start=\"3636\" data-end=\"3669\">\n<td data-start=\"3636\" data-end=\"3655\" data-col-size=\"sm\"><strong data-start=\"3638\" data-end=\"3654\">Size category<\/strong><\/td>\n<td data-col-size=\"md\" data-start=\"3655\" data-end=\"3669\">Small cabinet specimen<\/td>\n<\/tr>\n<tr data-start=\"3670\" data-end=\"3710\">\n<td data-start=\"3670\" data-end=\"3690\" data-col-size=\"sm\"><strong data-start=\"3672\" data-end=\"3689\">Crystal size<\/strong><\/td>\n<td data-col-size=\"md\" data-start=\"3690\" data-end=\"3710\">Up to approximately 8\u201310 mm<\/td>\n<\/tr>\n<tr data-start=\"3711\" data-end=\"3762\">\n<td data-start=\"3711\" data-end=\"3723\" data-col-size=\"sm\"><strong data-start=\"3713\" data-end=\"3722\">Color<\/strong><\/td>\n<td data-col-size=\"md\" data-start=\"3723\" data-end=\"3762\">Arsenopyrite silver-gray; calcite white<\/td>\n<\/tr>\n<tr data-start=\"3763\" data-end=\"3848\">\n<td data-start=\"3763\" data-end=\"3775\" data-col-size=\"sm\"><strong data-start=\"3765\" data-end=\"3774\">Luster<\/strong><\/td>\n<td data-col-size=\"md\" data-start=\"3775\" data-end=\"3848\">Metallic on arsenopyrite, pyrite and sphalerite; vitreous on calcite<\/td>\n<\/tr>\n<tr data-start=\"3849\" data-end=\"3930\">\n<td data-start=\"3849\" data-end=\"3867\" data-col-size=\"sm\"><strong data-start=\"3851\" data-end=\"3866\">Morphology<\/strong><\/td>\n<td data-col-size=\"md\" data-start=\"3867\" data-end=\"3930\">Densely arranged, sharply formed arsenopyrite crystals<\/td>\n<\/tr>\n<tr data-start=\"3931\" data-end=\"4005\">\n<td data-start=\"3931\" data-end=\"3947\" data-col-size=\"sm\"><strong data-start=\"3933\" data-end=\"3946\">Condition<\/strong><\/td>\n<td data-col-size=\"md\" data-start=\"3947\" data-end=\"4005\">Well-preserved crystals with natural contact points<\/td>\n<\/tr>\n<tr data-start=\"4006\" data-end=\"4088\">\n<td data-start=\"4006\" data-end=\"4025\" data-col-size=\"sm\"><strong data-start=\"4008\" data-end=\"4024\">Special Feature<\/strong><\/td>\n<td data-col-size=\"md\" data-start=\"4025\" data-end=\"4088\">Densely crystallized display side with contrasting calcite<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>This attractive arsenopyrite specimen comes from the well-known Mina Noche Buena in the Mexican state of Zacatecas. The display side is densely covered with well-formed, metallic arsenopyrite crystals. Small white calcite aggregates add bright accents and create a clear contrast with the silver-gray metallic luster of the crystals. Fine pyrite and sphalerite aggregates are also [&#8230;]\n","protected":false},"featured_media":1614,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_brand":[],"product_cat":[351],"product_tag":[],"class_list":["post-1618","product","type-product","status-publish","has-post-thumbnail","product_cat-minerals","first","instock","sold-individually","shipping-taxable","purchasable","product-type-simple"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.0 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Arsenopyrite with Calcite from Mina Noche Buena, Mexico<\/title>\n<meta name=\"description\" content=\"Metallic arsenopyrite crystals with white calcite, pyrite and sphalerite from Mina Noche Buena in Zacatecas, Mexico.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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