Grumixava (Micropholis guianensis)
Family: Sapotaceae
Common names: Apixuna, Barilla de agua, Caimitillo, Chupon Colorado, Faux balata, Grumixava, Hacano, Ibira camby, Koes, Koesiri balatarie, Moraballi, Riemhout
Distributed in: Argentina, Bahamas, Brazil, Cuba, Dominican Republic, French Guiana, Guyana, Haiti, Jamaica, Peru, Puerto Rico, Suriname, Venezuela (Central America, Latin America)
Distribution overview: The species is widely distributed from Costa Rica, Puerto Rico, and the Lesser Antilles to Peru, Bolivia, and Espirito Santo, Brazil.
Common uses: Beams, Bent Parts, Building construction, Building materials, Cabin construction, Cabinetmaking, Chairs, Chests, Concrete formwork, Construction, Decks, Decorative veneer, Desks, Dining-room furniture, Domestic flooring, Drawer sides, Factory construction, Factory flooring, Figured veneer, Fine furniture, Flooring, Form work, Foundation posts, Framing, Furniture , Furniture components, Furniture squares or stock, Hatracks, Heavy construction, Interior construction, Interior trim, Joists, Kitchen cabinets, Light construction, Living-room suites, Millwork, Moldings, Office furniture, Parquet flooring, Porch columns, Turnery
Environment profile: Data source is Nature Conservancy
Tree size: Trunk diameter is 150-200 cm
Colors: the heart isRed, Yellowish-Green hue and the sapwoodWhite, Yellow.The grain isStraight, the textureMediumand the lusterMedium
Natural durability: Susceptible to insect attack, Very durable
Odor: No specific smell or taste
Silica Content: Likely to have significant impact on machining
Kiln Drying Rate: Naturally dries slowly
Drying Defects: Slight surface checking, Splitting
Ease of Drying: Slowly
Blunting Effect: May be rapid and severe depending on silica amount
Boring: Straight grained wood bores well
Cutting Resistance: Straight grained wood has low resistance
Planing: Very Good to Excellent
Resistance to Impregnation: Sapwood is moderately resistant
Response to hand tools: Fairly Difficult to Difficult to Work
Sanding: Very Good to Excellent Results
Turning: Turns with moderate ease
Polishing: Fair to Good;
- Numerical data Metric
- Numerical data English
- Strength properties
- References
 |
 |
 |
 |
Item |
Green |
Dry |
Metric |
Specific Gravity |
0,61 |
0,67 |
|
Density |
|
769 |
kg/m3 |
Bending Strength |
939 |
1301 |
kg/cm2 |
Crushing Strength |
48 |
79 |
kg/cm2 |
Hardness |
|
662 |
kg |
Impact Strength |
|
|
cm |
Shearing Strength |
|
148 |
kg/cm2 |
Stiffness |
170 |
203 |
1000 kg/cm2 |
Tangential Shrinkage |
8 |
|
% |
Radial Shrinkage |
6 |
|
% |
Weight |
833 |
753 |
kg/m3 |
Maximum Load |
0,77 |
1,12 |
cm-kg/cm3 |
Toughness |
|
144 |
cm-kg |
Static Bending |
564 |
852 |
kg/cm2 |
|
 |  |  |  | Item | Green | Dry | English | Bending Strength | 13357 | 18512 | psi | Crushing Strength | 696 | 1137 | psi | Density | | 48 | lbs/ft3 | Hardness | | 1460 | lbs | Maximum Crushing Strength | 6478 | 9624 | psi | Shearing Strength | | 2107 | psi | Static Bending | 8026 | 12123 | psi | Stiffness | 2421 | 2891 | 1000 psi | Toughness | | 125 | inch-lbs | Work to Maximum Load | 11 | 16 | inch-lbs/in3 | Specific Gravity | 0.61 | 0.67 | | Weight | 52 | 47 | lbs/ft3 | Radial Shrinkage | 6 | | % | Tangential Shrinkage | 8 | | % | Volumetric Shrinkage | 14 | | % | |
Weight = very high Resists denting and marring Hardness (side grain) = medium Density = high Compression strength (parallel to grain) = very high Bending strength (MOR) = very high
Chudnoff, M.,1984,Tropical Timbers of the World,U.S.A. Department of Agriculture, Forest Service, Forest Products,Laboratory, Madison.ITTO. 1986. Tropical Timber Atlas, Volume 1 - Africa. International Tropical Timber Organization (ITTO) and Centre Technique Forestier Tropical (CTFT, 45bis, Avenue de la Belle Gabrielle, Nogent-sur-Marne Cedex, France.Wangaard, F.F., W.L. Stern, and S.L. Goodrich. 1955. Tropical Woods - Properties and Uses of Tropical Woods, Volume V, No. 103. School of Forestry, Yale University, New Haven, Connecticut.
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