2026-10-29T16:49:20Z https://nostr.now Raine https://nostr.now/npub1n82mwc0px2tkra9rnzfz96vgr8xvr2s502afnudfhpfpnnm6g8aq7zx59s https://media.tech.lgbt/accounts/avatars/110/164/334/773/898/306/original/c56d476330e1426f.png https://media.tech.lgbt/accounts/avatars/110/164/334/773/898/306/original/c56d476330e1426f.png https://nostr.now/nevent1qqst2nnh5nkds0yymdqpcphj08fre39hyywy9tsm748d3nlfw3zwk9gzyzvatdmpuyefwc055wvfyghf3qvuesd2z3at4x034xu9yxw00fql5jszr0t In reply to <a href='/nevent1qqsw07dukuc24j4ae66tupxpy7l57mvprzdljwasa9zm3chq7ssfdnqj3n6t3'>nevent1q…n6t3</a><br/>_________________________<br/><br/>Woag 2026-09-06T15:00:44Z https://nostr.now/nevent1qqsyrzf9x000jdgk3h5j9ylmdj2dyz4wdz0esp7zq5t78fwj69l6l5czyzvatdmpuyefwc055wvfyghf3qvuesd2z3at4x034xu9yxw00fql54kvyg2 In reply to <a href='/nevent1qqs2udaea5jdzerl0tvz6p2d905y667wg4dppmgcet649m6y9hnwztsmd9wef'>nevent1q…9wef</a><br/>_________________________<br/><br/>a neat crystal feature called &#34;twinning,&#34; while not unique to feldspars, makes them easily identifiable in thin section. What appears to be a single crystal under normal light is revealed to be discrete growths at different crystallographic orientations to each other under polarized light.<br/><br/>The type of twinning is even different depending on the feldspar, from simple twinning in most orthoclase feldspars, zebra stripe looking polysynthetic twinning in plagioclase feldspars, or even the visually striking crosshatch or plaid look of tartan twinning in microcline<br/> <a href="https://youtube.com/shorts/XNM-C8E0Bt0?si=Cle37bmHQrcE13XT">https://youtube.com/shorts/XNM-C8E0Bt0?si=Cle37bmHQrcE13XT</a> 2026-04-10T23:34:59Z