BETA

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Permian Sea Coral

Submitted by Ed FitzGerald on Mon, 2014-11-24 10:15
Stone Type (Commercial): 
Description: 

Dark beige with some burgundy. Takes a high gloss polish.

Availability: 
Available
Physical Data
Absorption (%): 
4.72
Density (lb/cf): 
145.85
Flexural Strength, Dry (psi): 
759
Modulus of Rupture, Dry (psi): 
1,134
Compressive Strength, Dry (psi): 
7,500
Bulk Specific Gravity: 
2.34
Abrasion Resistance: 
10.48
Geology
Grain Shape: 
Subangular
Subrounded
Grain Sorting: 
Poorly-Sorted
Grain Size: 
Coarse
Medium
Petrographic Description: 

Specimen: 2014-065
This is a fossiliferous limestone. The limestone is grain supported with a sparite cement matrix. Allochems comprise about 90 percent of non-void slide area. These criteria define the limestone as a grainstone. Identifiable allochems are approximately 80 percent bioclasts and 20 percent intraclasts and other peloids. These estimates and degree of sorting classify the limestone as a rounded biosparite. Identifiable bioclasts are mostly brachiopod fragments with rare bivalves. Maximum brachiopod bioclast dimension is 2.25 mm and a modal size is near 1.5 mm. Approximately 50 percent of allochems interpreted as bioclasts have undergone complete replacement by consertal sparite with modal crystal sizes near .2 mm. These grains have a maximum size near 4.5 mm. Intraclast/peloids have a maximum dimension near 3 mm. The cement is isopachous with rims up to .15 mm formed from elongated calcite radiating off of all grain types. Opaque crystals are locally abundant but constitute only about 1-3 percent of slide area. Individual opaque crystals are quite small at around .025 mm. Much of the non-fibrous cement as well as many micrite cores in peloids have deteriorated and are now secondary voids. This pattern suggests the voids are a relatively recent phenomenon indicative of near surface weathering. These voids currently constitute about 40 percent of slide area.
MP 9/4/2014

Images

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Specimen ID
2014-065 Image of specimen in dry conditions. Finish: download image Image of specimen in wet conditions. Finish: download image

Thin Sections

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Specimen ID Non-polarized Cross-polarized
2014-065 Specimen shown in non-polarized light.download image Specimen shown in cross-polarized light.download image

Quarry

NOTE: Quarry locations are approximate.

TexaStone Quarries
1400 Sherrod Rd
79739 Garden City , Texas
United States
31° 58' 56.2008" N, 101° 26' 25.44" W
Texas US

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