Industry: 1459—Clay, Ceramic, and Refractory Minerals, Not Elsewhere Classified
Establishments primarily engaged in mining, milling, or otherwise preparing clay, ceramic, or refractory minerals, not elsewhere classified. Establishments producing clay in conjunction with the manufacture of refractory or structural clay and pottery products are classified in Manufacturing, Major Group 32.

Andalusite miningFuller's earth mining
Aplite miningKyanite mining
Bentonite miningMagnesite mining
Brucite miningNepheline syenite quarrying
Burley miningOlivine (nongem) mining
Clays (common) quarrying—not in conjunction with manufacturingPegmatite (feldspar) mining
Cornwall stone miningPinite mining
Cyanite miningPlastic fire clay mining
Diaspore miningShale (common) quarrying—not in conjunction with manufacturing
Dumortierite miningSillimanite mining
Feldspar miningStoneware clay mining
Fire clay miningSyenite, nepheline—quarrying
Flint clay miningTopaz (nongem) mining
Codes Titles Number of US Businesses
1459Clay and Related Minerals, Nec116
145900Clay and related minerals, nec20
14590000Clay and related minerals, nec20
145901Clays, except kaolin and ball85
14590100Clays, except kaolin and ball15
14590101Bentonite mining35
14590102Clays (common) quarrying17
14590103Fire clay mining5
14590104Flint clay mining1
14590105Fuller's earth mining1
14590106Plastic fire clay mining1
14590107Shale (common) quarrying9
14590108Stoneware clay mining1
145902Nonclay refractory materials5
14590200Nonclay refractory materials3
14590201Andalusite mining1
14590203Kyanite mining1
14590204Magnesite mining0
145903Feldspar mining2
14590300Feldspar mining2
14590301Aplite mining0
14590302Nepheline syenite quarrying0
145999Clay and related minerals, nec, nec4
14599906Olivine (nongem) mining0