Ostrea Patch Reef Whitbed

Portland Stone Ostrea Patch Reef Whitbed



Shell Content

Bioclastic, oyster-bound clasts of well-cemented patch reef in a matrix of shelly oosparite – Many large grey and white oyster shell fragments.

Shell Distribution

The shells are randomly distributed throughout the stone.


Texture is typically coarse with some vuggy patches.


Typical Portland colour - variable light to dark grey, the colour varying with the density of included shell.

Mine Report No. 92

  • Autumn/Winter 2018
  • Jordans Mine, Portland

Maximum Block Sizes

  • Overall Size: 5.88m³
  • Length: 3.05m
  • Bed Height: 1.70m

Average Block Sizes in Stock

  • Overall Size: 3.19m³
  • Length: 1.94m
  • Bed Height: 1.34m

Current Availability

  • (0-3 months) 250-500m³

Future Availability

  • (3-12 months) 500-750m³

CE Certificates and Declarations of Performance

Technical Data Sheets

Specification Clauses