Marisia - Maros Megyei Múzeum Évkönyve 31/2. (2011)

Paleontology

Rodica CIOBANU 2. The “salinic rocks “class is represented by: carbonates (calcit, aragonit, dolomit), sulphates (plaster stone, barit), phosphtes (apatite), fluorides (fluorite), chlorides (halit) as well as by rocks, such as: limestone, limy tuffs, oolites, pisolites §i diorite sand. The carbonates Class: is well represented numerically, 296 samples, but not from the species variety point of view. The calcium within the salic stones group is dominant due to the variant of the crystallographic forms (dull rhombohedra, scalenoedri, etc.) as well as due to the color diversity (milky white, beige, pink, etc.) Most of the samples are from Fata Bäii, Boita, Sácárámb, Cavnic, Rodna and so on. The sulphates, also included in the “Salice rocks” group, are represented mostly by barytes (140 pieces) and gypsum (78 pieces). The samples from Ro§ia Montaná, Boita, Baia de Arie§, Cavnic, Rodna stand out due to the size of the tabular - angled made crystals and to the variety of the colors - from transparent to bluish-white. Fig. 3: Gypsum - Baia de Aries (AB), inv. no. 3678 3. The “salinic metals” class includes: carbonates (siderite, azurite, malachite, cerussite), sulphates (alunite), phosphates (pyromorphite), arseniate (eritrin), molybdates (wulfenite) and oxides (hematite). The azurite and the malachite, though present in smaller numbers (96 pieces), are impressive due to their coloring and due to the size of the elongate prismatic crystals (samples from Bäita, Ghelar, Moldova Nouä). Fig. 4: Azurite - Dognecea (CS), inv. no. 3916 4. The “oxide ores "class includes oxides (magnetite, hematite, limonite, ilmenite, cassiterite, piroluzit, rutile, wade, cuprite, tenorite) and carbonates (rhodochrosite). The rhodochrosite 114

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