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Blunting Effect
Boring
Carving
Certified Source
Comments
Common Names
Common Uses
Countries of Distribution
Cutting Resistance
Drying Defects
Ease of Drying
Environmental Profile
Family Name
Grain
Heartwood Color
Luster
Mortising
Moulding
Natural Durability
Numerical Data
Planing
References
Regions of Distribution
Resistance to Impregnation
Response to Hand Tools
Routing & Recessing
Sapwood Color
Scientific Name
Silica Content
Strength Properties
Texture
Trade Name
Tree Identification
Tree Size
Turning
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Common Names
Anaura, Gris-gris, Gris-gris coumate, Gris-gris rouge, Hierrito, Kauston, Marish, Marishiballi, Sponsoe hoedoe
Regions of Distribution
Latin America
Countries of Distribution
[VIEW MAP]
Guyana, Venezuela
Common Uses
Bridge construction, Charcoal, Fuelwood, Marine construction, Piling, Posts
Environmental Profile
Heartwood Color
| Black |
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| Brown |
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| Yellow |
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| Brown |
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| Yellow to golden-yellow to orange |
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| Dark brown |
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Sapwood Color
| Green/Grey |
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| Brown |
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| Yellow |
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| Different than heartwood |
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| Clearly differentiated from the heartwood |
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Grain
Texture
Luster
Natural Durability
| Perishable |
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| Resistant to attack from marine borers |
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| Moderately durable |
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| Resistant to attack from termites (Isoptera) |
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Silica Content
Drying Defects
| Checking |
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| Distortion |
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| Slight twist/warp |
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| Slight surface checking |
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Ease of Drying
| Rapidly |
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| Moderately Difficult to Difficult |
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| Moderate |
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Tree Identification
| Bole/stem form is not buttressed |
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| Bole/stem form is cylindrical |
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Tree Size
| Tree height is 20-30 m |
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| Tree height is 30-40 m |
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Certified Source
Comments
General finishing qualities are rated as good
Blunting Effect
| High to severe |
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| Blunting effect on machining is severe |
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Boring
| Fairly difficult to very difficult |
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| Moderately easy |
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Carving
| Fairly Difficult to Very Difficult |
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Cutting Resistance
| Fairly Difficult to Very Difficult to saw |
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Mortising
| Fairly Difficult to Very Difficult |
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Moulding
| Fairly Difficult to Very Difficult |
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Planing
| Fairly Difficult to Very Difficult |
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| Planes well, to a good finish |
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Resistance to Impregnation
| Permeable sapwood |
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| Permeable heartwood |
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Response to Hand Tools
Routing & Recessing
| Fairly Difficult to Very Difficult |
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Turning
| Fairly Difficult to Very Difficult |
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Strength Properties
| Density (dry weight) = 61 - 67 lbs/cu. ft. |
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| Density (dry weight) = 53 - 60 lbs/cu. ft. |
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| Density (dry weight) = 67-75 lbs/cu. ft. |
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| Shrinkage, Tangential = large |
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| Shrinkage, Radial = large |
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| Modulus of Elasticity (stiffness) = very high |
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| Max. crushing strength = very high |
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| Bending strength (MOR) = very high |
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Numerical Data
| Item | Green | Dry | English |
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| Bending Strength | 20907 | 29271 | psi |
| Density | | 51 | lbs/ft3 |
| Maximum Crushing Strength | 10035 | 13590 | psi |
| Stiffness | 2578 | 3011 | 1000 psi |
| Weight | 50 | 50 | lbs/ft3 |
| Radial Shrinkage | 6 | | % |
| Tangential Shrinkage | 10 | | % |
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| Item | Green | Dry | Metric |
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| Bending Strength | 1469 | 2058 | kg/cm2 |
| Density | | 817 | kg/m3 |
| Maximum Crushing Strength | 705 | 955 | kg/cm2 |
| Stiffness | 181 | 211 | 1000 kg/cm2 |
| Weight | 801 | 801 | kg/m3 |
| Radial Shrinkage | 6 | | % |
References
Amos, G.L.,1951,Some siliceous timbers of British Guiana,Caribbean Forester (3; 4) 133-7, 139-40.
Brown, W.H.,1978,Timbers of the World, No. 2 South America,TRADA, Red Booklet Series
Fanshawe, D.B.,1954,Forest Products of British Guiana Part 1 Principal Timbers,Forest Department British Guiana Forestry Bulletin (New Series 2nd,Edition,No.1
Longwood, F.R.,1962,Commercial Timbers of the Caribbean,U.S.A. Department of Agriculture, Agriculture Handbook,No.207
Takahashi, A.,1975,Compilation of data on the Mechanical Properties of Foreign Woods (Part 2,Central and South America,Shimane University, Japan, Research Report on Foreign Wood No.4
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