(約公元前 3000 – 2000 年)
盡管紅山文化玉器用材品種較複雜，多數是採用石頭性質，古時稱為珉的材料製作(硬度只達摩氏3度左右)。但從直觀印象判斷，該批玉器多數件應類似角閃石玉 (慣稱新疆崑山和闐玉，或河瑪河底之河瑪玉，即古時稱為真玉，硬度達摩氏 6 度左右)。 其特點為温潤而澤，縝密似栗，叩之玉聲沉重。另一特點由于此玉成器年代久遠，表皮滋生凸起物，尤在打礳不到的洞孔處更為明顯。在這里提出此新觀點， 供好古玉者多一個監別”紅山玉”時極可靠的佐準。
此批玉件，由于出土年代不詳， 估計為清代早中期具今約 200-300 年，因把玩摩娑痕迹明顯，極具靈性。而尺碼大， 材料佳，種類多，乃屬紅山玉文化罕見之驚世藏品。 而更為有趣的是通過接觸此批傳世品玉件，會發現此類玉件在製作後四，五千年內會起肉眼都能清楚見到變化的現象 (玉有皮膚病)。
Late Neolithic Period – Northern Hongshan Culture
(c.3000 – 2000 BC)
The Jade Relics
This set of eighteen pieces jade articles shaped in various mask designs, from the outlook of their craftsmanship, one can tell the articles belonged to the model case of Hongshan culture relics, upstream of Yellow River. Some of the pieces illustrate the Bird Culture (shaped in a bird features). With the style of unconstraint, boldness and the protruding face features based on the exceptional skillful workmanship, these jades were most likely to be the possessions of the potent chieftains and conjurers.
Although the HongShan culture jade pieces were usually made in stone like materials (Mohs hardness scale 3), from direct perceiving to this collection of jade pieces, this particular collection of jades’ compositions of Hongshan culture contain rather complex substances. Many of these articles are analogous to Nephrite (also known as the Xinjiang Kun Shan Nephrite, or “HeMa” Jade under the riverbed of “HeMa” river. Its hardness can go up to Mohs hardness scale 6). Its distinguish characteristics includes a translucent richness, high density of mass with a heavy, thick sound. Through the duration of centuries after centuries, the surfaces of the jades germinate layers of bumps which are particularly noticeable on the unpolished areas. By raising this debut perspective about HongShan culture jade relics, it offers the HongShan jade enthusiasts a more lucid verification.
The excavation year is unclear (c. Early-Mid Ching Dynasty, 200-300 years from now), the inwardness of the jades, and the traces of touch can be easily detected. The fine jade quality, intricate carving, numerous designs and the unusual large size of the pieces distinguish these items as monumental, phenomenal articles among jade ornaments of its kind. Additional interesting fact is, one can still see clearly with their eyes the transformation within the jades (as if it has skin bumps) long after 4000-5000 years of the finished artworks.