Negros Orienta has not only the metal minerals of copper, manganese and magnet, and a variety of non-metallic minerals, silica, coal, gypsum, silica, clay and other.
Another mineral found in the municipalities of Jimalalud, Tayasan, Sibulan and Valencia is iron and some of its related compounds of magnetite, pyrite and marcasite. Pyrite deposits are also evident in Vallehermoso and Basay.
Lignite, another mineral in the coal family has been found in Mabinay. This mineral, known for its penetratingly black color and often referred to as “jet” can be used in the making of jewelry when combined with other locally available resources. The most abundant resource in Negros Oriental is lime in various forms.
Sand and Gravel
Sand and gravel can be found throughout the coastal municipalities of the province which are being used in the manufacture of hollow blocks and glass, and both materials are used as filters and in building and paving construction. One form of quarrying is Small Scale Quarry.
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