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Čechite

• 
  Alexander Shaft (Alexander Mine), Vrančice, Příbram, Central Bohemia Region, Bohemia (Böhmen; Boehmen), Czech Republic
  © Thomas Witzke

• Formula:
  Pb(Fe²⁺,Mn²⁺)(VO₄)(OH)

• System: Orthorhombic

• Name:
  Named by Zdeněk Mrázek and Zdeněk Táborský in 1981 in honor of František Čech [August 17, 1929 Mèřín near Velké, Mezíříkí, Czech Republic - September 4, 1995] mineralogist, Charles University, Prague, Czech Republic.

• IMA Status: Valid (Approved)

• Type Locality:
  Alexander Shaft (Alexander Mine), Vrančice, Příbram, Central Bohemia Region, Bohemia (Böhmen; Boehmen), Czech Republic

• Dana 8th: 41.5.2.4
  
  41 : ANHYDROUS PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
  5 : (AB)₂(XO₄)Z_q

• Hardness (Mohs): 4½ - 5

• Density: 5.88 g/cm³ (measured)
  5.94 g/cm³ (calculated)

• Lustre: Resinous,Sub-Metallic

• Diapheny: Opaque

• Diapheny: brittle

• Colour: Black

• Streak: Black