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天然 ラピスラズリ 岩絵の具 ウルトラマリン顔料 自家製
 
        

左上:市販油絵具 反時計回りに1~5等級粉

同配置 粉をオイルで溶いた状態 間接日光

同配置 一週間後 間接日光

色比較に使った左上の市販油絵具

溶いたポピーオイル

ラピスラズリ原石の一部

主要なラピスラズリ原石と粗粉砕

チェンニーニ技法による抽出直後の様子

チェンニーニ技法による被抽出後のパテ

保管の様子

  • Product Quantity
    : 1
  • Starting Bid
    :5,000円
  • Highest Bidder
    : / Rating:
  • Listing Date
    :2026年03月03日 17時48分
  • Bidding closes on
    :2026年03月06日 17時48分
  • Auction Number
    :w1217106417
  • Condition
    :New product
  • Automatic Extension
    :Yes
  • Authentication
    :No
  • Early Closing
    :Yes
  • Can I return the product?
    :no
  • Description
  • Q&A ()
  • Cost Estimator
  • Problem Item Response Procedur
Notes
  1. International shipping regulations state that liquid, paste, and powder products cannot be imported or shipped.

お世話になります。
天然ラピスラズリの自家製岩絵の具です。
出品者はKindle書籍『天然ウルトラマリンブルー顔料の作り方2020』の執筆者です。

約6年振りの出品となります。過去に購入頂いた方々にはお礼申し上げます。
チェンニーニの青色成分抽出技法を現代風にアレンジして量産できるようになっています。
今回は更に高効率化を図って納得いく品質(後述の1等級)に全てが到達してから売り出す予定でしたが、
狙いの青色を安定的に抽出することの難しさに2年間苦悩し続けたところ、
気が滅入って来たため途中で止めて出品することにしました。

■原石
使用したラピスラズリ原石は、アフガニスタン産(仕入先業者の説明)です。

■粒度
粉の粒度は250メッシュ(約60ミクロン)の篩を通過するもので、
最大粒度は岩絵の具の『9〜10番:やや粗粒』に相当します。
割合は不明ですがそれ以下の粒度も含まれています。

■色味
チェンニーニの技法は1400年頃に記されたウルトラマリンブルー顔料を製造するためのものです。
抽出の良し悪しによって青の色味度合が異なることも記述されております。
そこで、油絵具用のオイル(ポピー)で溶いて市販のホルベイン油絵具H122ウルトラマリンブルーと共に比較しています。
画像では、粉のみ、粉にオイルを垂らした直後、一週間後を示します。
市販の絵の具の色に近い順番で1~5等級に分類しましたので画像をご確認願います。
尚、等級は青の色味が強い順に番号を振っているだけで、客観的な指標ではありません。
5等級はラピスラズリ原石を粉砕したのみで抽出は行っていません。
驚く人もおられるかもしれませんが、見た目青いラピスラズリ原石でも粉砕しただけだとダークグレーの発色となります。
また、伝統技法でも化学合成の市販絵の具に迫る青色を再現できていることを評価いただけると嬉しいです。

■取引量
青の色味が強いほど高価になるため取引量は少なくなります。
落札価格に依らず一回の取引量は下記となります。
落札時にご所望の等級を一つお知らせください。
 1等級:10g
 2等級:20g
 3等級:30g
 4等級:40g
 5等級(未抽出):300g

■在庫量
在庫量に限りがあります。
再製造販売の予定はありませんのでお早めにご検討ください。
特に1等と2等は少ないです。
 1等級:約10g 
 2等級:約180g
 3等級:約800g
 4等級:約1000g
 5等級(未抽出):1kg以上

ここで、5等級はラピスラズリ原石を粉砕しただけで未抽出の粉で、
この粉から他の等級の粉をチェンニーニ技法で抽出しています。
5等級だけでなく、抽出済みの3~4等級の粉を使って純度の高い抽出を試みることも可能です。

■その他
6年前の出品時はレアさに注目が集まり、特に日本画用に人気で、
画材店も含め京都府から多く購入していただきました。
プロ画家にもご使用いただき、展覧会へこの顔料を使った作品を出展する計画をうかがい、
とても楽しみにしていましたが、結局コロナ禍で流れてしまい残念な思いをしました。


仕事の都合で土日の発送となります。
参考までに抽出に使用した松脂も出品しています
どうぞよろしくお願いいたします。


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Product Price JPY
Japanese Consumption Tax(10%) JPY

A 10% consumption tax is applied to goods and services in Japan. The price may include the tax or it may be added separately. Please check the price details when ordering.

Note: This is a domestic sales tax applied within Japan.

Japan Local Shipping Fee JPY Japan Local Shipping Fee Reference
Product Weight KG The maximum weight limit is 30 kg
International Shipping Methods
Proxy bidding and purchasing services are becoming increasingly convenient. However, overseas shopping carries certain risks and issues. To reduce these risks and enhance shopping safety, please be sure to read the following information:

1. International Shipping

   Air Freight: If the item status is not confirmed within two days after the arrival notice, any customer complaints cannot be addressed with the seller.

2. After Receiving the Product

Please confirm and inspect the product as soon as possible to ensure that the product specifications, quantity, accessories, and description are correct

If, unfortunately, there are any issues, you can refer to the following examples on how to report related product problems:
1. Example of missing product information
2. Example of product not matching provided information
3. Example of damaged product information

Important Notes: 1. If the seller is unwilling to ship overseas or is unaware that the product will be shipped overseas, the international shipping cost for returns or exchanges will need to be borne by the member. You may refer to the EMS e-Express fee inquiry from the post office. If it involves alcoholic beverages or items that affect flight safety, the post office cannot be used for shipment, and only DHL can be used to ship back to Japan.
2. During the product complaint handling period, please retain the complete outer packaging of the product (including the shipping label information), and refrain from attempting any repairs or altering the original condition. Any modifications may result in the inability to process the case.

3. After Inspecting the Product

After receiving and inspecting the item, if you have any questions, it is recommended to contact Letao within 2 hours. Here are some reminders:

1. Please do not unpack, use or repair the received item yourself, and be sure to keep the original packaging to facilitate subsequent handling of related matters, so as to avoid changes to the item that may cause the seller to be unwilling to process.

2. You can call customer service, and the customer service will leave a message for you as below. Please provide the following information:
"Hello, we will first help you establish a complaint case for Product ID: _______ .But we need you to 2-3 clear photos of the product issue, including photos of the product problem, product packaging, shipping details slip, and outer box. Send them to service@letao.my and inform us of your desired resolution (failing to provide this may result in an inability to process subsequent matters). After sending the email, notify us in the customer service message. We will confirm with the seller as soon as possible. and if there are any related questions, we will contact you through the customer service message. Thank you for your cooperation."

Please provide:
1. "Product ID"
2. Photo of the "Delivery Note" (if any)
3. Photos of the outer box (including inner and outer packaging)
4. Photos of the product (Please include relevant descriptions to help us confirm with the seller)

Important Notes:
1. Do not include foreign text or other products in the background of the image.
2. Please keep the complete product packaging (including the shipping label information), and refrain from repairing or altering the original condition on your own, as any changes may result in the case being unable to be processed.
3. Please provide the relevant information within 48 hours to avoid missing the golden hour for reflection and causing situations that cannot be handled.
4. Due to 99% of Japanese sellers being unwilling or unaware of shipping goods overseas, if a seller is willing to handle the issue, the goods must be sent back to Japan, and the international shipping costs incurred must be borne by the member. Letao will use postal EMS international express to send the goods back to Japan.
5. As the goods are purchased from overseas, it may take approximately one to two weeks to complete the relevant processing procedures when issues arise with the goods. Please be reminded that you can inquire about the approximate cost through the EMS service at the post office.

4. FAQ

1. Issue of Authenticity: If antique or branded goods are found to be counterfeit upon receipt, clear photos showing the differences between the genuine product and the imitation must be provided as evidence. If unable to provide relevant proof, assistance can be sought to find a third-party reputable organization for a premium authentication service .
2. Leaking Iron Teapot: If an antique iron teapot is leaking, please take clear photos of the leaking area and provide them.
3. Transport Damage: If the goods are damaged during international shipping (to the pickup point), you need to provide photos of the outer packaging of the parcel and clear photos of the damaged goods' outer packaging.

※ Note: Photos provided to sellers should not contain any foreign-related information.
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    Product name: 天然 ラピスラズリ 岩絵の具 ウルトラマリン顔料 自家製
    Notes:
    Customer service hours:
    • Monday to Friday 10:00-18:00
    Customer service hotline:
    Customer Service Email: service@letao.my