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Geologically our sandstone is classified as a medium to coarse grained quartz-rich sandstone. |
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Primary Name: | Mangrove Mountain Buff | |||
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Geological Name: | Quartz Sandstone (Quartz Arenite) | |||
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Stone Type: | Sandstone | |||
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Colour: | Golden Brown | |||
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Quarry Location: | Central Coast, NSW | |||
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Availability: | Good | |||
| General Use: | Internal and External | ||||
| Diamond Sawn, Gang Sawn, Hydrasplit, Rockfaced and Honed | |||||
| Finishes Available: | |||||
| (ASTM C880:1998) | |||||
| Flexural Strength: | |||||
Dry values: |
7.8 MPa 2.8 MPa |
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| Modulus of Rupture: | (ASTM C99: 1987) | ||||
| Dry values: Wet values: |
9.8 MPa 2.8 MPa |
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| Compressive Strength: | (ASTM C170:1990) |
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| Dry values: Wet values: |
45.6 MPa 23.2 MPa |
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| Water Absorption: | 3.9% | ||||
| Resistance to Salt Attack: | (AS/NZS 4456.10: 2003) | ||||
| Mean % mass loss: | 2.4 | ||||
| Bulk Density: | 2.4tonne/m3 | ||||
Tests completed by CSIRO - Rock sample (labeled SY 920)was supplied for petrographic analysis. |
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Petrographic Composition: |
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Quartz |
75% | ||||
| Clay (illite-smectite) | 12% | ||||
Siderite |
5% | ||||
| Iron Hydroxide | 3% | ||||
Chlorite |
1% | ||||
| Leucoxene | 1% | ||||
| Alkali Feldspar | 1% | ||||
Muscovite |
2% | ||||
| Carbonaceous matter | 1% | ||||
| Magnetite | <1% | ||||
Copyright Mangrove Mountain Quarries Pty Ltd 2008 |
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