Rough opal mines
Fe chrome, chrome ore, limestone
Limestone, iron ore
Limestone, iron ore
Dolomite and limestone
Zircon sand
White lime, calcium, magnesium and black sand
River sand, marine sea sand
Garnet sand, quartz
Limestone, calcined limestone, calcined dolomite
Yellow sapphire
Emerald rough
Emerald
Emerald stone
Natural pearls
Limestone and calcium carbonate
Burnt lime, limestone, dolomite
Signity zircon stones
Red african ruby gemstone
Emerald rough and finished emerald