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        hornblende (3)
        
        kaersutite (2)
      - orthoamphibole
        
        anthophyllite (1)
    - pyroxene group
      - clinopyroxene
        
        augite (2)
  - framework silicates
    - feldspar group
      - alkali feldspar
        
        K-feldspar (3)
        
        perthite (2)
      - plagioclase
        
        albite (2)
    - silica minerals
      - cristobalite (1)
      - opal
        
        opal-A (2)
        
        opal-CT (2)
      - quartz (22)
      - tridymite (1)
    - zeolite group
      - heulandite (1)
      - laumontite (2)
      - stilbite (1)
  - iron silicates (1)
  - orthosilicates
    - nesosilicates
      - garnet group (3)
      - kasolite (1)
      - olivine group
        
        fayalite (1)
      - sillimanite (1)
      - uranophane (1)
      - zircon group
        
        zircon (11)
  - ring silicates
    - cordierite (1)
  - sheet silicates
    - cerolite (1)
    - chlorite group
      - chlorite (6)
    - clay minerals
      - allophane (2)
      - dickite (3)
      - halloysite (1)
      - imogolite (1)
      - kaolinite (13)
      - montmorillonite (4)
      - nacrite (1)
      - nontronite (2)
      - smectite (8)
      - stevensite (1)
    - illite (8)
    - mica group
      - biotite (6)
      - muscovite (3)
    - sepiolite (1)
    - sericite (1)
    - serpentine group
      - berthierine (1)
      - serpentine (2)
    - talc (1)
- sulfates
  - alunite (1)
  - anhydrite (3)
  - barite (7)
  - celestine (1)
  - gypsum (8)
  - jarosite (1)
  - natroalunite (1)
  - thenardite (1)
- sulfides
  - bornite (1)
  - chalcopyrite (2)
  - galena (63)
  - greigite (1)
  - iron sulfides (2)
  - laurite (1)
  - marcasite (2)
  - molybdenite (2)
  - pentlandite (1)
  - pyrite (11)
  - pyrrhotite (4)
  - sphalerite (15)
- sulfosalts
  - sulfantimonites
    - tetrahedrite (1)
- tungstates
  - scheelite (1)
- uranium minerals (2)
Primary terms
- absolute age (129)
- Africa
  - Central Africa
    - Central African Republic (1)
    - Congo Democratic Republic (1)
    - Gabon (1)
  - East Africa
    - Ethiopia (1)
    - Kenya (1)
    - Malawi (1)
    - Mozambique (1)
    - Sudan (3)
    - Tanzania
      - Oldoinyo Lengai (1)
    - Uganda (2)
    - Zambia (1)
  - Kalahari Desert