1998. MINERALS OF ARMENIA.
154. Pyrite
155. Agate
    Designer: Haroutiun Samuelian
    Perf 14 3/4:13 3/4 (40.64/24.13), Offset

    154 170.00 0.45 0.35
    155 250.00 0.65 0.50
    Set of 2 1.05 0.85
    First day cover 1.85
    154-155 SL 2000.00 5.00 5.00


154


155

2000. MINERALS OF ARMENIA (II issue)

Quartz is widely available in nature. Its crystals have the form of an extended prism. The colour is diverse: colourless, white and gray.
Quartz sands are important in manufacture of glass and ceramics.
Transparent and coloured crystals are used in jewellery.
Molybdenite is a mineral of the sulfid class.
It forms prismatic and barrel-shaped crystals. The colour is light-blue-grey, with a metallic shine. Molybdenite is the source ore for molybdenium.
The deposits are in Kajaran, Agarak, Dastakert and Hankavan regions of the Republic of Armenia.

190. Quartz
191. Molybdenite
    Designer: Haroutiun Samuelian
    Perf 14 3/4:13 3/4 (40.64/24.13), Offset

    Cat. No Value (Dram) Mint (USD) Used (USD)
    190 170.00 0.41 0.38
    191 250.00 0.62 0.56
    Set of 2 1.03 0.94
    First day cover 47 1.94

    First Day Cover:
    Designer: Haroutiun Samuelian


190


191