{"id":1927,"date":"2026-05-21T10:29:39","date_gmt":"2026-05-21T08:29:39","guid":{"rendered":"https:\/\/mineralien-weltweit.com\/product\/natrolite-richter-quarry-hammerunterwiesenthal-germany\/"},"modified":"2026-05-21T10:29:39","modified_gmt":"2026-05-21T08:29:39","slug":"natrolite-richter-quarry-hammerunterwiesenthal-germany","status":"publish","type":"product","link":"https:\/\/mineralien-weltweit.com\/en\/product\/natrolite-richter-quarry-hammerunterwiesenthal-germany\/","title":{"rendered":"Natrolite from the Richter Quarry near Hammerunterwiesenthal, Germany"},"content":{"rendered":"

This natrolite specimen comes from the Richter Quarry near Hammerunterwiesenthal in the Saxon Ore Mountains. Numerous fine natrolite crystals sit on a natural phonolite matrix. <\/p>\n

The white to cream-colored crystals form dense, partly radial aggregates. Their surfaces appear matte to silky. The darker matrix remains visible in places between the crystal groups. <\/p>\n

Measuring 6.5 \u00d7 5.0 \u00d7 4.2 cm, the piece belongs to the small cabinet specimen size category. It weighs 121 g. <\/p>\n

Natrolite from a Phonolite Occurrence in the Ore Mountains<\/h3>\n

The Richter Quarry near Hammerunterwiesenthal is a well-known German locality for zeolite minerals. Larger cavities occur in the phonolite exposed there and may be lined mainly with natrolite, calcite, and thomsonite. <\/p>\n

The zeolite minerals formed as mineral-bearing fluids circulated through fractures and cavities in the volcanic rock. Natrolite was deposited on the walls of these open spaces. <\/p>\n

The fine crystal aggregates, phonolite matrix, and documented provenance make this piece a characteristic natrolite specimen from Hammerunterwiesenthal.<\/p>\n

\n
\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Feature <\/th>\nDetails<\/th>\n<\/tr>\n<\/thead>\n
Mineral<\/td>\nNatrolite<\/td>\n<\/tr>\n
Chemical Composition<\/td>\nHydrated sodium aluminum silicate, Na\u2082Al\u2082Si\u2083O\u2081\u2080 \u00b7 2H\u2082O<\/td>\n<\/tr>\n
Locality<\/td>\n Richter Quarry, Hammerunterwiesenthal, Oberwiesenthal, Erzgebirge district, Saxony, Germany<\/td>\n<\/tr>\n
Dimension<\/td>\n6.5 \u00d7 5.0 \u00d7 4.2 cm<\/td>\n<\/tr>\n
Weight<\/td>\n121 g<\/td>\n<\/tr>\n
Specimen Size<\/td>\nSmall Cabinet Specimen<\/td>\n<\/tr>\n
Color<\/td>\nWhite to cream-colored<\/td>\n<\/tr>\n
Luster<\/td>\nMatte to silky<\/td>\n<\/tr>\n
Transparency<\/td>\nOpaque<\/td>\n<\/tr>\n
Crystal Habit<\/td>\nFine, acicular to fibrous crystals<\/td>\n<\/tr>\n
Crystal arrengement<\/td>\nDense, partly radial aggregatese<\/td>\n<\/tr>\n
Matrix<\/td>\nPhonolite<\/td>\n<\/tr>\n
Formation<\/td>\nZeolite formation in cavities within phonolite<\/td>\n<\/tr>\n
Special Feature<\/td>\nNatrolite from the Richter Quarry near Hammerunterwiesenthal<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

This natrolite specimen comes from the Richter Quarry near Hammerunterwiesenthal in the Saxon Ore Mountains. Numerous fine natrolite crystals sit on a natural phonolite matrix. The white to cream-colored crystals form dense, partly radial aggregates. Their surfaces appear matte to silky. The darker matrix remains visible in places between the crystal groups. Measuring 6.5 \u00d7 […]\n","protected":false},"featured_media":1924,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_brand":[],"product_cat":[351],"product_tag":[],"class_list":["post-1927","product","type-product","status-publish","has-post-thumbnail","product_cat-minerals","first","instock","sold-individually","shipping-taxable","purchasable","product-type-simple"],"yoast_head":"\nNatrolite from Hammerunterwiesenthal, Germany<\/title>\n<meta name=\"description\" content=\"Fine white to cream-colored natrolite crystals on phonolite matrix from the Richter Quarry near Hammerunterwiesenthal, Germany.\" \/>\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\/natrolite-richter-quarry-hammerunterwiesenthal-germany\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" 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