Experimental analysis reveals distinct textures and phases in polyphase diopside materials, suggesting complex formation processes.
Based on natural carbonate raw materials, oxide components and fluorite, polyphase materials with a silicate composition were synthesized in laboratory conditions. The phase composition, structure and micromorphology of the obtained experimental samples were studied. Their textural properties - medium to micro-grained, spinifex or chilled marginal zones, attest that they have crystalized from a melt. In separate areas, gradual transitions from one type of texture to another and a limited presence of amorphous zones were observed. The diopside is the main phase that appear in all samples as prismatic to needle-shaped crystals. Fluorite presents in small amount in all samples with spheroidal to irregular shape. Wollastonite, akermanite, calcite and quartz also present as important phases according to sample’s composition. Zincian hydroxide, chromite and an unidentified pigment are small constituents and reflect addition of various metals as colorants.
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Jivov et al. (2025) studied this question.
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