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{"id":2048485,"date":"2018-06-28T21:37:43","date_gmt":"2018-06-28T21:37:43","guid":{"rendered":"https:\/\/romfilatelia.ro\/romagazin\/produs\/minerale-din-romania\/"},"modified":"2021-01-20T11:09:41","modified_gmt":"2021-01-20T11:09:41","slug":"minerale-din-romania","status":"publish","type":"product","link":"https:\/\/romfilatelia.ro\/romagazin\/?product=minerale-din-romania","title":{"rendered":"MINERALE DIN ROM\u00c2NIA"},"content":{"rendered":"

\"\"<\/p>\n

Romfilatelia<\/strong> revine cu o tematic\u0103 apreciat\u0103 de colec\u021bionari, prin introducerea \u00een circula\u021bie a emisiunii de m\u0103rci po\u0219tale Minerale din Rom\u00e2nia<\/em><\/strong>, <\/em>pun\u00e2nd \u00een valoare, \u00eenc\u0103 o dat\u0103, exponate unicat din patrimoniul Muzeului Jude\u021bean de Mineralogie \u201eVictor Gorduza\u201d din Baia Mare.<\/p>\n

Muzeul Jude\u021bean de Mineralogie \u201eVictor Gorduza\u201d din Baia Mare, considerat de speciali\u0219ti ca fiind cel mai mare muzeu mineralogic regional din Europa, de\u021bine o colec\u021bie de peste 20.000 de piese din care aproximativ 17.000 sunt e\u0219antioane minerale. Dintre acestea, \u00een expozi\u021bia permanent\u0103 pot fi vizionate peste 1.000 de e\u0219antioane minerale, minereuri, roci \u0219i fosile recoltate exclusiv din aflorimente \u0219i subteranele exploat\u0103rilor miniere ce au func\u021bionat \u00een zona Baia Mare \u0219i arealele adiacente din Maramure\u0219 \u0219i nord-vestul Rom\u00e2niei, multe dintre ele fiind unicate sau rarit\u0103\u021bi mondiale.<\/p>\n

Cele patru timbre ale emisiunii de m\u0103rci po\u0219tale ilustreaz\u0103 minerale din colec\u021bia acestui muzeu, astfel:<\/p>\n

E\u0219antionul cu mineralele pirit\u0103 \u0219i cuar\u021b<\/em><\/strong>, de provenien\u021b\u0103 zona\u021aible\u0219, este reprezentat pe timbrul cu valoarea nominal\u0103 de 2 lei<\/strong>.<\/p>\n

Pe timbrul cu valoarea nominal\u0103 de 5 lei<\/strong> este este reprodus e\u0219antionul cu mineralele galen\u0103 \u0219i semseyit<\/em><\/strong>, extras din mina Herja.<\/p>\n

Timbrul cu valoarea nominal\u0103 de 8,50 lei<\/strong> red\u0103 un e\u0219antion din mina Cavnic, cu mineralele gips \u0219i calcit<\/em><\/strong>.<\/p>\n

Provenit din mina Herja, e\u0219antionul cu mineralele cuar\u021b \u0219i calcit<\/em><\/strong> este ilustrat pe timbrul cu valoarea nominal\u0103 de 12 lei<\/strong>.<\/p>\n

Pirita<\/em><\/strong>, mineral<\/a> din clasa sulfurilor,<\/em> cu formula chimic\u0103 FeS2<\/sub><\/strong>, cristalizeaz\u0103 \u00een sistemul cubic \u0219i reprezint\u0103 principalul mineral utilizat pentru producerea sulfului \u0219i acidului sulfuric, materii prime de prim rang ale industriei chimice. \u00cen e\u0219antionul reprodus pe timbrul emisiunii se observ\u0103 cristale cubice bine individualizate de pirit\u0103, ce prezint\u0103 fe\u021be specifice striate, de culoare galben-bronz, luciu metalic puternic, \u00eentrep\u0103trunse de cristale mai mici de culoare galben – auriu, frecvent irizate. \u00cen regiunea Baia Mare sunt faimoase cristalele cubice mari \u0219i foarte str\u0103lucitoare din mun\u021bii \u021aible\u0219.<\/p>\n

Prin frumuse\u021be \u0219i spectaculozitate se remarc\u0103 mineralul din clasa sulfurilor<\/em>, cu formula chimic\u0103 PbS<\/strong>, galena<\/em><\/strong>, care cristalizeaz\u0103 \u00een sistem cubic. Este cel mai r\u0103sp\u00e2ndit mineral de plumb \u0219i cel mai important din punct de vedere economic, fiind unul dintre primele minerale exploatate din cele mai vechi timpuri. Se distinge cu u\u0219urin\u021b\u0103 at\u00e2t datorit\u0103 culorii cenu\u0219ii, luciului metalic str\u0103lucitor, c\u00e2t \u0219i formelor cristalografice de m\u0103rime deosebit\u0103, de octaedru, cub, dodecaedru romboidal sau combina\u021bii ale acestora. \u00cen Rom\u00e2nia mineralul este mai r\u0103sp\u00e2ndit \u00een bazinul minier B\u0103i\u021ba (jud. Bihor), Baia Sprie \u0219i Cavnic (Jud. Maramure\u0219).<\/p>\n

Gipsul<\/em><\/strong>, un mineral din clasa sulfa\u021bi<\/em>, cu formula chimic\u0103: CaSO4<\/sub>\u20222H2<\/sub>O<\/strong> (sulfat hidratat de calciu), cristalizeaz\u0103 \u00een sistemul monoclinic \u0219i are duritate sc\u0103zut\u0103. Este incolor (\u00een stare pur\u0103), alb, cenu\u0219iu, uneori g\u0103lbui sau brun-ro\u0219cat. Cel mai frecvent are luciu sticlos \u0219i este transparent. Se prezint\u0103 sub form\u0103 de agregate paralele sau radiare, uneori maclate de tipul \u201ecoad\u0103 de r\u00e2ndunic\u0103\u201d. Deseori apare ca \u0219i cristale independente perfect transparente, cu habitus tabular sau columnar, precum e\u0219antionul reprodus pe timbru Preponderent se folose\u0219te \u00een industria lian\u021bilor \u0219i la fabricarea ipsosului, dar \u0219i \u00een medicin\u0103, pentru fixarea fracturilor, ca bandaj sau pentru mulaje \u00een stomatologie. \u00cen arheologie, paleontologie \u0219i \u00een art\u0103 se utilizeaz\u0103 pentru reconstituiri \u0219i statui din gips pur sau \u00een amestec cu alte minerale.<\/p>\n

Cel mai frecvent mineral \u00eent\u00e2lnit \u00een rocile din crusta P\u0103m\u00e2ntului, cu compozi\u021bia chimic\u0103 SiO2<\/sub><\/strong>, cuar\u021bul,<\/em><\/strong> face parte din clasa silica\u021bilor<\/em>, cristaliz\u00e2nd \u00een sistemul trigonal. \u00cen regiunea Baia Mare apare sub cele mai diverse aspecte morfologice, coloristice \u0219i de concre\u0219tere. \u00cen general cristalele de cuar\u021b au habitus columnar-prismatic, cu fe\u021be cristalografice de prism\u0103 \u0219i termina\u021bii piramidale \u0219i sunt concrescute paralel. Este utilizat la producerea sticlei, a celulelor solare, semiconductorilor, \u00een optic\u0103 \u0219i la fabricarea unor instrumente de mare precizie. Variet\u0103\u021bile colorate ale cuar\u021bului, \u00een special cea numit\u0103 ametist,<\/em> de culoare violet, reprezentat\u0103 pe timbrul emisiunii, sunt considerate pietre semipre\u021bioase \u0219i sunt folosite la confec\u021bionatea bijuteriilor.<\/p>\n

Aurul<\/em><\/strong> (Au<\/strong>) se g\u0103se\u0219te \u00een natur\u0103 fie ca element nativ, precum e\u0219antionul ilustrat pe plicul \u201eprima zi\u201d a emisiunii (aur, sfalerit, cuar\u021b<\/strong>, provenien\u021b\u0103 mina Cavnic), fie \u00een componen\u021ba altor minerale (\u00een special sulfuri \u0219i sulfos\u0103ruri). Cristalizeaz\u0103 \u00een sistemul cubic \u0219i este primul dintre metalele pre\u021bioase prelucrate de c\u0103tre om, a c\u0103rui istorie \u0219i evolu\u021bie a influen\u021bat-o. Aurul este folosit at\u00e2t pentru bijuterii, c\u00e2t \u0219i pentru instrumente dentare, componente electronice \u0219i plac\u0103ri inoxidabile. Aurul \u00een agregat mu\u0219chiform, foarte str\u0103lucitor, de culoare galben-auriu intens\u0103, formeaz\u0103 e\u0219antioane impresionante datorit\u0103 m\u0103rimii lor, ce au fost descrise de-a lungul timpului \u00een zona minier\u0103 Baia Mare, la mina Cavnic.<\/p>\n

Romfilatelia mul\u021bume\u0219te Muzeului Jude\u021bean de Mineralogie \u201eVictor Gorduza\u201d din Baia Mare pentru sprijinul documentar \u0219i fotografic acordat
\nla realizarea acestei emisiuni de m\u0103rci po\u0219tale. <\/em><\/p>\n

\u00a0<\/em><\/p>\n

\u00a0<\/em><\/strong>PRODUSE SPECIALE \/ SPECIAL PRODUCTS:<\/em><\/strong><\/p>\n

\u00a0<\/em><\/p>\n

Albumul filatelic<\/em><\/strong> este realizat \u00een tiraj limitat de 245<\/strong> de exemplare \u0219i este echipat cu blocul emisiunii (con\u021bin\u00e2nd patru timbre dantelate cu man\u0219et\u0103 ilustrat\u0103) precum \u0219i plicul \u201eprima zi\u201d av\u00e2nd \u0219tampila \u201eprima zi\u201d aplicat\u0103 \u00een clar cu folio, ambele produse fiind numerotate, de la 001<\/strong> la 245<\/strong>. <\/em><\/p>\n

\"\"<\/p>\n","protected":false},"excerpt":{"rendered":"

Romfilatelia revine cu o tematic\u0103 apreciat\u0103 de colec\u021bionari, prin introducerea \u00een circula\u021bie a emisiunii de m\u0103rci po\u0219tale Minerale din Rom\u00e2nia, […]<\/p>\n","protected":false},"featured_media":2048486,"template":"","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}}},"product_cat":[2649,2618],"product_tag":[],"class_list":{"0":"post-2048485","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-2649","7":"product_cat-colectii-anuale","8":"desktop-align-left","9":"tablet-align-left","10":"mobile-align-left","12":"first","13":"instock","14":"taxable","15":"shipping-taxable","16":"product-type-grouped","17":"add-to-wishlist-before_image"},"_links":{"self":[{"href":"https:\/\/romfilatelia.ro\/romagazin\/index.php?rest_route=\/wp\/v2\/product\/2048485"}],"collection":[{"href":"https:\/\/romfilatelia.ro\/romagazin\/index.php?rest_route=\/wp\/v2\/product"}],"about":[{"href":"https:\/\/romfilatelia.ro\/romagazin\/index.php?rest_route=\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/romfilatelia.ro\/romagazin\/index.php?rest_route=\/wp\/v2\/media\/2048486"}],"wp:attachment":[{"href":"https:\/\/romfilatelia.ro\/romagazin\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2048485"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/romfilatelia.ro\/romagazin\/index.php?rest_route=%2Fwp%2Fv2%2Fproduct_cat&post=2048485"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/romfilatelia.ro\/romagazin\/index.php?rest_route=%2Fwp%2Fv2%2Fproduct_tag&post=2048485"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}