{"id":5995,"date":"2026-09-25T16:08:39","date_gmt":"2026-09-25T13:08:39","guid":{"rendered":"https:\/\/dev.artefactumgallery.com\/catalog\/046-gr-martian-meteorite-nwa-15497-shergottite\/"},"modified":"2026-10-13T08:26:43","modified_gmt":"2026-10-13T05:26:43","slug":"046-gr-martian-meteorite-nwa-15497-shergottite","status":"publish","type":"product","link":"https:\/\/artefactumgallery.com\/en-hk\/catalog\/046-gr-martian-meteorite-nwa-15497-shergottite\/","title":{"rendered":"0,46 gr Martian Meteorite NWA 15497, Shergottite"},"content":{"rendered":"<p><strong>Rarity and Value<\/strong><br \/>Martian meteorite NWA 15497 is an exceptionally rare shergottite originating from the volcanic crust of Mars. Formed between 150 and 600 million years ago, this meteorite represents direct geological material from another planet, preserved after its violent ejection into space by a massive impact event. Its mineral composition, including maskelynite created through intense shock metamorphism, together with pyroxenes and olivine characteristic of Martian basalts, makes this specimen highly important for planetary science. Authenticated Martian meteorites are among the rarest materials available on Earth and are greatly valued by collectors, museums, and researchers for their scientific and extraterrestrial significance.<\/p>\n<p><strong>Discovery<\/strong><br \/>The specimen was recovered in 2020 from the Sahara Desert in Northwest Africa, a region internationally recognised for yielding some of the world\u2019s most significant meteorite discoveries. The arid desert environment preserves extraterrestrial material exceptionally well, allowing rare meteorites to remain identifiable over long periods. Scientific examination confirmed the Martian origin of NWA 15497 through diagnostic Fe\/Mn ratios and trace element patterns consistent with basaltic shergottites. These geochemical characteristics provide evidence of volcanic activity and magmatic differentiation processes that occurred deep within the Martian crust and mantle.<\/p>\n<p><strong>Preservation<\/strong><br \/>This slice preserves a fine-grained basaltic matrix containing low-calcium and high-calcium pyroxenes, olivine, chromite, ilmenite, and sulfide minerals. The conversion of plagioclase into maskelynite records the immense pressures generated during the impact event that launched the rock from Mars into interplanetary space. Minor secondary alteration minerals indicate limited terrestrial weathering after its arrival on Earth. The meteorite remains exceptionally well-preserved, retaining detailed mineralogical structures essential for scientific analysis and offering a rare opportunity to study authentic material originating from the surface of Mars.<\/p>\n<p><strong>Composition<\/strong><\/p>\n<p>Maskelynite (shock-transformed plagioclase), low-Ca pyroxene (pigeonite), high-Ca pyroxene (augite), olivine, and accessory phases within a fine-grained basaltic matrix containing chromite, ilmenite, sulfides and minor secondary alteration minerals.<\/p>\n<p><strong>Geochemistry<\/strong><\/p>\n<p>Plagioclase (An35\u201355, maskelynite), olivine (Fa25\u201340), low-Ca pyroxene (En50\u201360 Fs30\u201340 Wo5\u201310), high-Ca pyroxene (Wo30\u201345), with Fe\/Mn ratios consistent with Martian origin, and trace elements showing enrichment in incompatible elements typical of Martian basaltic shergottites.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Rarity and ValueMartian meteorite NWA 15497 is an exceptionally rare shergottite originating from the volcanic crust of Mars. Formed between 150 and 600 million years ago, this meteorite represents direct geological material from another planet, preserved after its violent ejection into space by a massive impact event. Its mineral composition, including maskelynite created through intense [&hellip;]<\/p>\n","protected":false},"featured_media":2979,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false},"animal":[],"family":[],"frame_color":[],"genus":[],"kind":[1603],"material":[],"period":[],"artifact_type":[],"type_of_rug":[],"view":[],"product_brand":[],"product_cat":[1259,1238,1310],"product_tag":[],"class_list":["post-5995","product","type-product","status-publish","has-post-thumbnail","kind-slice","product_cat-meteorite-crystals","product_cat-meteorites-and-minerals","product_cat-piece-mars","first","outofstock","sold-individually","shipping-taxable","purchasable","product-type-simple"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>0.46 gr Martian Meteorite NWA 15497 | Hong Kong<\/title>\n<meta name=\"description\" content=\"Martian meteorite NWA 15497, 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