Home
Auction 21
340 BOULDER FIRE OPAL boulder opal is found embedded in ...

Lot 340 - Auction 21

339

Lot 340

Signed jewellery

341

BOULDER FIRE OPAL

Bids

Lot status:

Auction closed

Description

BOULDER FIRE OPAL
boulder opal is found embedded in ironstone boulders. The opal usually forms as thin veins within this boulders and most stones are cut to include some of the host ironstone matrix. Boulder opal is sometime referred to as opal in matrix for this reason. Meassures 46.95x30.94x22.3 mm. Weight 28.7 gr.

Only registered and authorized users are allowed to place bids.

Please use the registration form to send us your participation request, or, if you are already registered and authorized, use the login box on the top.

For any information please contact info@bertolamifineart.com

Auction 21

Cookie Policy

Cookies

To make this site work properly, we sometimes install small data files called "cookies " on your device. Most of the big sites do the same.

What are cookies?

A cookie is a small text file that websites save on your computer or mobile device while you visit them. Thanks to cookies, the site remembers your actions and preferences (for example login, language, font size and other display settings) so that you do not have to re-enter them when you return to the site or browse from one page to another.

How do we use cookies?

Third party cookies

Google Analytics

This site uses Google Analytics to collect information about the use of users of its website. Google Analytics generates statistical and other information through cookies, stored on users' computers. The information generated relating to our website is used to make reports on the use of websites. Googl

How to control and modify cookies?

You can modify or withdraw your consent at any time from the cookie declaration on our website.

Privacy Policy

Find out more about who we are, how you can contact us and how we process personal data in our privacy policy .

Necessary (10) Analytics (10) Technicians (0) Profiling (1) Unclassified (0)

The necessary cookies help to make the website usable by enabling basic functions such as page navigation and access to protected areas of the site. The website cannot function properly without these cookies.

Name	Supplier	Purpose	Expiry
cookieConsent	Bid Inside	Stores the user's cookie consent status for the current domain	6 months
PHPSESSID	Bid Inside	Preserve the user's status in the different pages of the site.	When the browsing session ends
f_display	Bid Inside	The f_display cookies memorize the display mode chosen by the user in the pages where there are lists	When the browsing session ends
f_page	Bid Inside	The f_page cookies store the page viewed by the user in the pages where there are lists	When the browsing session ends
f_rec_page	Bid Inside	The f_rec_page cookies store the number of elements to be displayed per page chosen by the user in the pages in which there are lists	When the browsing session ends
f_order_by	Bid Inside	The f_order_by cookies store the sorting parameter selected by the user in the pages where there are lists	When the browsing session ends
f_order_dir	Bid Inside	The f_order_dir cookies store the ordering direction chosen by the user in the pages where there are lists	When the browsing session ends
watch_list_show_imgs	Bid Inside	The watch_list_show_imgs cookie stores the user's choice to show or hide lot images on the watch list page	When the browsing session ends
selected_voice	Bid Inside	The selected_voice cookie stores the voice selected by the user for the speech synthesis present in the live auction	1 Month
include_autobids	Bid Inside	The include_autobids cookie stores the user's choice to show or hide their auto-bids on the 'Your bids' page	6 months

Analytical cookies help to understand how visitors interact with the website, collecting and transmitting statistical information to the Data Controller.

Name	Supplier	Purpose	Expiry
_ga	google	Register a unique ID used to generate statistical data on how the visitor uses the website.	2 years
_gat_gtag	google	Used by Google Analytics to limit the frequency of requests	1 day
_gat	google	Used by Google Analytics to limit the frequency of requests	1 day
_gid	google	Register a unique ID used to generate statistical data on how the visitor uses the website.	1 day
__utma	Bid Inside	Used to distinguish users and sessions. The cookie is created when the javascript library executes and no existing __utma cookies exists. The cookie is updated every time data is sent to Google Analytics.	2 years
__utmt	Bid Inside	Used to throttle request rate.	10 minutes
__utmb	Bid Inside	Used to determine new sessions/visits. The cookie is created when the javascript library executes and no existing __utmb cookies exists. The cookie is updated every time data is sent to Google Analytics.	30 minutes
__utmc	Bid Inside	Not used in ga.js. Set for interoperability with urchin.js. Historically, this cookie operated in conjunction with the __utmb cookie to determine whether the user was in a new session/visit.	When the browsing session ends
__utmz	Bid Inside	Stores the traffic source or campaign that explains how the user reached your site. The cookie is created when the javascript library executes and is updated every time data is sent to Google Analytics.	6 months
__utmv	Bid Inside	Used to store visitor-level custom variable data. This cookie is created when a developer uses the _setCustomVar method with a visitor level custom variable. This cookie was also used for the deprecated _setVar method. The cookie is updated every time data is sent to Google Analytics.	2 years

Preference technical cookies allow a website to remember information that affects the way the site behaves or presents itself, such as your preferred language or the region you are in.

We do not use cookies of this type.

Profiling cookies are used for marketing purposes, to monitor website visitors. The intent is to display relevant and engaging ads for the individual user.

Name	Supplier	Purpose	Expiry
_fbp	Facebook	Facebook Pixel, targeting and advertising cookie. This cookie allows us to show our advertising to people who have already visited our website, when they are on Facebook or on a digital platform supported by Facebook Advertising.	6 months

Unclassified cookies are cookies that are being classified, together with individual cookie providers.