Lushi black rosewood and sandalwood rosewood share some similarities, yet they are distinct in many ways. When experts examined these tree species, they found that both the L. sylvestris (commonly known as the large-leaf rosewood) and the sandalwood rosewood (referred to as the lobular rosewood) exhibit single-row rays in their chord sections under microscopic observation. This suggests a familial connection between the two species, explaining why their furniture designs often appear somewhat alike. However, they are far from identical. In terms of physical properties, L. black rosewood falls short in aspects such as dry density, bending strength, elastic modulus, and grain compressive strength compared to sandalwood rosewood. Additionally, its tubular pores tend to be coarser, making furniture crafted from it less stable and prone to cracking. When comparing the original trees, the L. black rosewood is slightly thicker than the red sandalwood. While cutting, the former emits a sour odor (hence the term "sour branch"), whereas the latter has a spicier aroma, which has become characteristic of sandalwood over time.
Despite these differences, Lushi black rosewood remains an excellent material, particularly among black rosewoods, and is highly valued for creating traditional furniture. Its ability to produce beautiful pieces has been well-documented.
The name "big leaf red sandalwood" is quite intriguing. One interpretation is that it is contrasted with "lobular rosewood," since the latter’s leaves are notably smaller. Interestingly, the term "small leaf red sandalwood" is also non-standard, leading to further inconsistencies. Another theory traces back to its earlier name, "Dalian rosewood," which refers to the wood's slightly thicker fibers. This "coarseness" is relative to sandalwood rosewood, hence why the latter is sometimes called "fine silk rosewood." Mispronunciations and misinterpretations of terms like "white" and "silk" led to the nickname "big leaf rosewood," despite it not referring to the tree's leaves. These explanations are more anecdotal than factual. The true origin of the name might simply reflect the wood's resemblance to sandalwood rosewood, combined with the term "red sandalwood," as a marketing strategy to capitalize on the prestige of sandalwood. There are numerous variations of this wood (reportedly up to 63 types), many of which lack standardization, contributing to this confusion.
Now that the term "big leaf red sandalwood" exists, it’s best to stick to formal nomenclature in professional contexts to avoid further discrepancies.
Methods for Identifying Lushi Black Rosewood and Sandalwood Rosewood
At a macroscopic level, there are several commonalities between Lushi black rosewood and sandalwood rosewood:
1. Both are heartwood that initially appears orange in fresh cuts and gradually darkens to deep purple or nearly black over time;
2. Both possess a characteristic "cow hair" texture and "Venus" patterns, but the tubular patterns in Lushi black rosewood are larger and sparser than those in sandalwood rosewood.
On a microscopic scale, however, the differences are more pronounced. For instance, the dry density, bending strength, elastic modulus, and grain compressive strength of L. black rosewood are inferior to those of sandalwood rosewood. Moreover, the tubular pores in L. black rosewood are typically larger and less refined compared to sandalwood rosewood.
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