Granite · California

Academy Black®

Dark, relatively fine-grained granite from Clovis, California.

Quarried can help with material selection, fabrication options and producer introductions.

Colors: Black
Supplied as: Quarry blocks · Slabs
Finishes: Polished · Diamond® 200 · Textured · Thermal · Split · Diamond® 10 · Rub & Sand · Diamond® 8 · Bush Hammer · Diamond® 100 · Diamond® 300 · Rock Pitch / Split & Dressed
Typical uses: Landscape & site stone · Sculpture & monuments

Origin evidence

Sources (2)

MSHA associations under review (1)

Possible mine-record matches are research leads. They do not establish a supplying quarry or change the verified origin shown above.

Academy Black · Mine ID 0400231 · Recorded status: Active
Snapshot: 18 September 2026. Mine source record 0400231 · Look up this ID at MSHA · Status effective 23 July 1972

Producer-published summary · Report date: Not stated

Property	Test method	Reported result	Condition / orientation
Bulk density	ASTM C97	180.3 lb/ft³	Not stated
Absorption	ASTM C97	0.07 %	Not stated
Compressive strength	ASTM C170	26,660 psi	Not stated
Modulus of rupture	ASTM C99	2,314 psi	Not stated

Producer-published values; the complete laboratory report and test conditions have not been reviewed.

Granite · California

Coldspring