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    Home > Chemicals Industry > Chemical Technology > Identification of cinnabar and identification of pearls

    Identification of cinnabar and identification of pearls

    • Last Update: 2022-06-22
    • Source: Internet
    • Author: User
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    Cinnabar CINNABARIS

    [Source] This product aromatic sulfide mineral cinnabar cinnabar, mainly containing mercury sulfide (HgS)
    .
    After excavation, the pure ones are washed, magnets are used to absorb iron-containing impurities, and then rubble and sand are washed away with water

    .

    [Properties] This product is a granular or massive aggregate, in the form of granules or flakes
    .
    Bright red or dark red, streak red to brown red, shiny

    .
    Weight and texture are fragile, flakes are easily broken, and powders have a shimmering luster

    .
    Slightly odorless (Figure 18-6B, C)

    .

    【Character identification characteristics】

    (1) It is in the form of granules or flakes
    .

    (2) Bright red or dark red
    .

    (3) Weight, crispness, and easy to break
    .

    (4) Those in powder form have a shimmering luster
    .


    Figure 18-6 Dragon's Blood, Cinnabar
    A.
    Dragon's Blood B.
    Cinnabar C.
    Cinnabar

    Pearl MARGARITA

    [Source] This product is a pearl formed by stimulation of bivalves such as Pteria martensii (Dunker), Hyriopsis cumingii (Lea) or Cristaria plicata (Leach)
    .
    Automatically take out the object, wash and dry

    .

    [Properties] This product is spherical, oblong, oval or rod-shaped, with a diameter of 1.
    5-8mm

    .
    The surface is white, light pink, light yellow-green or light blue, translucent, smooth or slightly bumpy, and has a unique color luster

    .
    The quality is hard, and the broken surface shows stratification (Figure 18-7A~D)

    .
    Smell, taste is weak

    .

    【Character identification characteristics】

    (1) It is quasi-spherical, oblong, oval or rod-shaped
    .

    (2) The diameter is 1.
    5~8mm

    .

    (3) The surface is white, light pink, light yellow green or light blue, translucent
    .

    (4) It has a unique color luster
    .

    (5) The broken surface shows layer lines
    .


    Figure 18-7 Pearl
    A.
    Pearl B.
    Powder polarization C.
    Fragment layer pattern D.
    Powder microscopy

     

     

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