{"id":80,"date":"2024-04-04T06:11:42","date_gmt":"2024-04-04T03:11:42","guid":{"rendered":"https:\/\/sisu.ut.ee\/mineraalid-ja-kivimid\/kvarts\/"},"modified":"2024-04-04T06:13:05","modified_gmt":"2024-04-04T03:13:05","slug":"kvarts","status":"publish","type":"page","link":"https:\/\/sisu.ut.ee\/mineraalid-ja-kivimid\/kvarts\/","title":{"rendered":"Kvarts"},"content":{"rendered":"

\n\tKvarts<\/b>\u00a0(r\u00e4nioksiid SiO2). On \u00fcks levinumatest mineraalidest maakoores (12%). K\u00f5va mineraal (v\u00f5imeline kriimustama klaasi), kuulub paljude tard- ja moondekivimite (n\u00e4iteks\u00a0graniidi<\/a>,\u00a0rabakivi<\/a>, kvartsporf\u00fc\u00fcri,\u00a0gneisi<\/a>\u00a0ja\u00a0kvartsiidi<\/a>) koostisse. Nendes kivimites esineb ta tavaliselt korrap\u00e4ratute teradena, millel on valge kuni tumehall rasvaselt l\u00e4ikiv pind.\n<\/p>\n

\n\tKvarts on\u00a0liiva<\/a>\u00a0olulisim koostisosa. Tavaliselt kujutab endast 80-90% liivateradest \u00fcmardunud kvartsikristalle.\n<\/p>\n

\n\tL\u00e4bipaistvad v\u00e4rvitud kristallid on tuntud\u00a0m\u00e4ekristallina<\/b>\u00a0(fotod 1, 2, 3), tumedad pruunikad kristallid\u00a0suitsukvartsina<\/b>\u00a0(foto 5), must kvarts moorionina, violetne\u00a0amet\u00fcstina<\/b>\u00a0(fotod 6, 7, 8).\n<\/p>\n

\n\tKristalli pindadel on j\u00e4lgitav ristiviirutus (fotod 2, 3),\u00a0k\u00f5vadus 7<\/b>\n<\/p>\n

\n\tKvarts on tardkivimite oluliseks koostismineraaliks. Esineb samuti soonte n\u00e4ol. Laialt levinud ka settekivimites (liivad<\/a>,\u00a0liivakivid<\/a>) ja moondekivimites (gneisid<\/a>,\u00a0kildad<\/a>).\n<\/p>\n

\n\tPeitkristalset kvartsi nimetatkse tavaliselt\u00a0kaltsedoniks<\/a>, sirendava helgiga erimeid\u00a0tiigri-<\/a>, kassi- v\u00f5i kullisilmaks.\n<\/p>\n

\n\t\"maekristall\"\u00a0\"maekristall\"\u00a0\"maekristall\"
Foto 1, 2, 3. M\u00e4ekristall\n<\/p>\n

\n\t\"kvarts\"\u00a0\"kvarts\"
Foto 4. Kvartsipesa kohati limoniidist kollakas, Adavere\n<\/p>\n

\n\t\"suitsukvarts\"
Foto 5. Suitsukvarts\n<\/p>\n

\n\t\"ametyst\"\u00a0\"ametyst\"\u00a0\"ametyst\"
Foto 6, 7, 8. Amet\u00fcst<\/p>\n","protected":false},"excerpt":{"rendered":"

Kvarts\u00a0(r\u00e4nioksiid SiO2). On \u00fcks levinumatest mineraalidest maakoores (12%). K\u00f5va mineraal (v\u00f5imeline kriimustama klaasi), kuulub paljude tard- ja moondekivimite (n\u00e4iteks\u00a0graniidi,\u00a0rabakivi, kvartsporf\u00fc\u00fcri,\u00a0gneisi\u00a0ja\u00a0kvartsiidi) koostisse. Nendes kivimites esineb ta tavaliselt korrap\u00e4ratute teradena, millel on valge kuni tumehall rasvaselt l\u00e4ikiv pind. Kvarts on\u00a0liiva\u00a0olulisim koostisosa. Tavaliselt …<\/p>\n","protected":false},"author":226,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"class_list":["post-80","page","type-page","status-publish","hentry"],"acf":[],"_links":{"self":[{"href":"https:\/\/sisu.ut.ee\/mineraalid-ja-kivimid\/wp-json\/wp\/v2\/pages\/80","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sisu.ut.ee\/mineraalid-ja-kivimid\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/sisu.ut.ee\/mineraalid-ja-kivimid\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/sisu.ut.ee\/mineraalid-ja-kivimid\/wp-json\/wp\/v2\/users\/226"}],"replies":[{"embeddable":true,"href":"https:\/\/sisu.ut.ee\/mineraalid-ja-kivimid\/wp-json\/wp\/v2\/comments?post=80"}],"version-history":[{"count":1,"href":"https:\/\/sisu.ut.ee\/mineraalid-ja-kivimid\/wp-json\/wp\/v2\/pages\/80\/revisions"}],"predecessor-version":[{"id":768,"href":"https:\/\/sisu.ut.ee\/mineraalid-ja-kivimid\/wp-json\/wp\/v2\/pages\/80\/revisions\/768"}],"wp:attachment":[{"href":"https:\/\/sisu.ut.ee\/mineraalid-ja-kivimid\/wp-json\/wp\/v2\/media?parent=80"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}