{"id":2438,"date":"2026-08-15T21:35:08","date_gmt":"2026-08-15T19:35:08","guid":{"rendered":"https:\/\/mineralien-weltweit.com\/?post_type=product&p=2438"},"modified":"2026-08-15T21:35:08","modified_gmt":"2026-08-15T19:35:08","slug":"pyrite-penetration-twin-navajun-spain","status":"publish","type":"product","link":"https:\/\/mineralien-weltweit.com\/en\/product\/pyrite-penetration-twin-navajun-spain\/","title":{"rendered":"Pyrite Penetration Twin from Navaj\u00fan, Spain"},"content":{"rendered":"

This small Pyrite specimen from Navaj\u00fan, Spain shows a striking intergrowth of two cubic crystals. The smaller crystal is strongly intergrown with the larger cube, forming a characteristic penetration twin with an almost cross-like geometry. <\/p>\n

The metallic crystal faces show the typical appearance of Pyrite from Navaj\u00fan. Despite its compact size of only 2.2 cm, the specimen has a distinctive three-dimensional form and is particularly interesting for collectors who appreciate well-defined cubic Pyrite crystals and unusual crystal intergrowths. <\/p>\n

Cubic Pyrite crystals forming a penetration twin<\/h3>\n

The main crystal has a clearly cubic shape. A second Pyrite crystal is intensely intergrown with it and projects from the upper and front areas of the larger cube. Together, the two crystals form a pronounced penetration twin that appears different depending on the viewing angle. <\/p>\n

The crystal faces display a strong metallic luster. Slight natural surface structures are visible on some faces. The combination of cubic crystal habit and the unusual intergrowth gives the specimen more visual interest than a simple isolated cube. <\/p>\n

Pyrite from the classic Navaj\u00fan locality<\/h3>\n

Navaj\u00fan in the Spanish region of La Rioja is internationally known for exceptionally well-formed cubic Pyrite crystals. Specimens from this locality are especially appreciated for their clear geometric forms and pronounced metallic luster. <\/p>\n

With dimensions of 2.2 \u00d7 2.2 \u00d7 2.0 cm and a weight of 36.6 g, this is a compact Thumbnail specimen. Its main appeal lies not in size, but in the distinctive penetration twin formed by the two intergrown crystals. <\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Feature<\/th>\nDetails<\/th>\n<\/tr>\n
Mineral<\/td>\n

<\/p>\n

Pyrite<\/td>\n<\/tr>\n
Locality<\/td>\nNavaj\u00fan, La Rioja, Spain<\/td>\n<\/tr>\n
Dimensions<\/td>\n2.2 \u00d7 2.2 \u00d7 2.0 cm<\/td>\n<\/tr>\n
Weight<\/td>\n36.6 g<\/td>\n<\/tr>\n
Size category<\/td>\nThumbnail<\/td>\n<\/tr>\n
Color<\/td>\nBrass-yellow<\/td>\n<\/tr>\n
Luster<\/td>\nMetallic luster<\/td>\n<\/tr>\n
Crystal habit<\/td>\nCubic<\/td>\n<\/tr>\n
Crystal arrangement<\/td>\nPenetration twin formed by two cubic Pyrite crystals<\/td>\n<\/tr>\n
Special Feature<\/td>\nDistinctive Pyrite penetration twin<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

This small Pyrite specimen from Navaj\u00fan, Spain shows a striking intergrowth of two cubic crystals. The smaller crystal is strongly intergrown with the larger cube, forming a characteristic penetration twin with an almost cross-like geometry. The metallic crystal faces show the typical appearance of Pyrite from Navaj\u00fan. Despite its compact size of only 2.2 cm, […]\n","protected":false},"featured_media":2435,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_brand":[],"product_cat":[351],"product_tag":[],"class_list":["post-2438","product","type-product","status-publish","has-post-thumbnail","product_cat-minerals","first","instock","sold-individually","shipping-taxable","purchasable","product-type-simple"],"yoast_head":"\nPyrite from Navaj\u00fan, Spain | Penetration Twin<\/title>\n<meta name=\"description\" content=\"Cubic Pyrite from Navaj\u00fan, Spain, forming a distinctive penetration twin. 2.2 cm Thumbnail specimen with strong metallic luster.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/mineralien-weltweit.com\/en\/product\/pyrite-penetration-twin-navajun-spain\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" 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